{
 "name": "The Phone Path headphone and source database",
 "url": "https://thephonepath.com/data/",
 "licence": "CC BY 4.0",
 "licence_url": "https://creativecommons.org/licenses/by/4.0/",
 "attribution": "The Phone Path — thephonepath.com",
 "note": "Sensitivity is stored in dB/mW. Where a manufacturer published it per volt it was converted with dB/mW = dB/V - 10*log10(1000/Z); the published value and unit are kept alongside so the conversion can be checked or undone. Amplifier power at loads the maker did not publish is derived by holding output voltage constant between and beyond the published loads, which understates rather than flatters. The basis column says which is which for every figure.",
 "headphones": 578,
 "sources": 280,
 "data": [
  {
   "brand": "64 Audio",
   "model": "Aspire 1",
   "type": "iem",
   "impedance_ohm": 11,
   "published_impedance": "11Ω @ 1kHz",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 123.6,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB",
   "published_condition": "@ 1kHz @1mw",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/collections/universal-iems/products/aspire-series",
   "page": "https://thephonepath.com/headphones/64-audio-aspire-1/"
  },
  {
   "brand": "64 Audio",
   "model": "Fourte",
   "type": "iem",
   "impedance_ohm": 10,
   "published_impedance": "",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 134.0,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
   "published_unit": "dB (reference stated separately as @1mW)",
   "published_condition": "@1kHz @1mW",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/fourte",
   "page": "https://thephonepath.com/headphones/64-audio-fourte/"
  },
  {
   "brand": "64 Audio",
   "model": "Nio",
   "type": "iem",
   "impedance_ohm": 6,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 127.2,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/nio",
   "page": "https://thephonepath.com/headphones/64-audio-nio/"
  },
  {
   "brand": "64 Audio",
   "model": "Ocean",
   "type": "iem",
   "impedance_ohm": 9.5,
   "published_impedance": "9.5 Ω @ 1 kHz",
   "sensitivity_db_mw": 103.7,
   "sensitivity_db_v": 123.9,
   "power_mw_at_100db": 0.427,
   "published_value": 103.7,
   "published_unit": "dB/mW",
   "published_condition": "@ 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/collections/universal-iems/products/ocean",
   "page": "https://thephonepath.com/headphones/64-audio-ocean/"
  },
  {
   "brand": "64 Audio",
   "model": "Solo",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "@ 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/collections/universal-iems/products/solo",
   "page": "https://thephonepath.com/headphones/64-audio-solo/"
  },
  {
   "brand": "64 Audio",
   "model": "U12t",
   "type": "iem",
   "impedance_ohm": 12.6,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 127.0,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB/mW",
   "published_condition": "@ 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/u12t",
   "page": "https://thephonepath.com/headphones/64-audio-u12t/"
  },
  {
   "brand": "64 Audio",
   "model": "U18s",
   "type": "iem",
   "impedance_ohm": 8,
   "published_impedance": "8Ω Nominal",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 127.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB/mW",
   "published_condition": "Sensitivity @1kHz @ 1mW (84mV)",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/collections/universal-iems/products/u18s",
   "page": "https://thephonepath.com/headphones/64-audio-u18s/"
  },
  {
   "brand": "64 Audio",
   "model": "U4s",
   "type": "iem",
   "impedance_ohm": 11,
   "published_impedance": "",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 126.6,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/u4s",
   "page": "https://thephonepath.com/headphones/64-audio-u4s/"
  },
  {
   "brand": "64 Audio",
   "model": "U6t",
   "type": "iem",
   "impedance_ohm": 9,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 118.5,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB/mW",
   "published_condition": "not stated beyond the bare dB/mW",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/u6t",
   "page": "https://thephonepath.com/headphones/64-audio-u6t/"
  },
  {
   "brand": "64 Audio",
   "model": "Volur",
   "type": "iem",
   "impedance_ohm": 6.3,
   "published_impedance": "",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz @1mW (94mV)",
   "basis": "published-per-mW",
   "source_url": "https://www.64audio.com/products/volur",
   "page": "https://thephonepath.com/headphones/64-audio-volur/"
  },
  {
   "brand": "7Hz",
   "model": "Legato",
   "type": "iem",
   "impedance_ohm": 26,
   "published_impedance": "26Ω(@1KHz)",
   "sensitivity_db_mw": 92.1,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 6.166,
   "published_value": 108,
   "published_unit": "dB/v",
   "published_condition": "@1KHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.linsoul.com/products/7hz-legato",
   "page": "https://thephonepath.com/headphones/7hz-legato/"
  },
  {
   "brand": "7Hz",
   "model": "Salnotes Zero",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": ">32ohm",
   "sensitivity_db_mw": 93.1,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 4.898,
   "published_value": 108,
   "published_unit": "dB/v",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.linsoul.com/products/7hz-salnotes-zero",
   "page": "https://thephonepath.com/headphones/7hz-salnotes-zero/"
  },
  {
   "brand": "7Hz",
   "model": "Sonus",
   "type": "iem",
   "impedance_ohm": 30,
   "published_impedance": "30Ω(@1KHZ)",
   "sensitivity_db_mw": 93.8,
   "sensitivity_db_v": 109.0,
   "power_mw_at_100db": 4.169,
   "published_value": 109,
   "published_unit": "DB/V",
   "published_condition": "@1KHZ",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.linsoul.com/products/7hz-sonus",
   "page": "https://thephonepath.com/headphones/7hz-sonus/"
  },
  {
   "brand": "7Hz",
   "model": "Timeless AE",
   "type": "iem",
   "impedance_ohm": 14.8,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 122.3,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "1Khz (printed as '104dB/1Khz' — the slash is the frequency, not a reference)",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://hifixaudio.com/products/7hz-timeless-ae",
   "page": "https://thephonepath.com/headphones/7hz-timeless-ae/"
  },
  {
   "brand": "7Hz",
   "model": "Zero:2",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 111.9,
   "power_mw_at_100db": 1.995,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.linsoul.com/products/7hz-x-crinacle-zero-2",
   "page": "https://thephonepath.com/headphones/7hz-zero-2/"
  },
  {
   "brand": "Abyss",
   "model": "AB-1266 Phi CC",
   "type": "over-ear",
   "impedance_ohm": 42,
   "published_impedance": "",
   "sensitivity_db_mw": 88.0,
   "sensitivity_db_v": 101.8,
   "power_mw_at_100db": 15.849,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://abyss-headphones.com/collections/all",
   "page": "https://thephonepath.com/headphones/abyss-ab-1266-phi-cc/"
  },
  {
   "brand": "Abyss",
   "model": "AB-1266 Phi TC",
   "type": "over-ear",
   "impedance_ohm": 50,
   "published_impedance": "",
   "sensitivity_db_mw": 88.0,
   "sensitivity_db_v": 101.0,
   "power_mw_at_100db": 15.849,
   "published_value": 88,
   "published_unit": "dB/mW",
   "published_condition": "none stated. Abyss prints it lowercase as '88 db/mW'; impedance is printed '50 ohm nominal'",
   "basis": "published-per-mW",
   "source_url": "https://abyss-headphones.com/products/abyss-ab-1266-phi-headphone",
   "page": "https://thephonepath.com/headphones/abyss-ab-1266-phi-tc/"
  },
  {
   "brand": "Abyss",
   "model": "Diana MR",
   "type": "over-ear",
   "impedance_ohm": 30,
   "published_impedance": "",
   "sensitivity_db_mw": 93.0,
   "sensitivity_db_v": 108.2,
   "power_mw_at_100db": 5.012,
   "published_value": 93,
   "published_unit": "dB/mW",
   "published_condition": "none stated; printed as \"93 dB/mW\". Impedance printed \"30 Ω\"",
   "basis": "published-per-mW",
   "source_url": "https://abyss-headphones.com/products/america250-abyss-diana-mrx-bass-reference-headphone",
   "page": "https://thephonepath.com/headphones/abyss-diana-mr/"
  },
  {
   "brand": "Abyss",
   "model": "Diana Phi",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 91.0,
   "sensitivity_db_v": 105.9,
   "power_mw_at_100db": 7.943,
   "published_value": 91,
   "published_unit": "dB/mw",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://abyss-headphones.com/pages/abyss-downloads",
   "page": "https://thephonepath.com/headphones/abyss-diana-phi/"
  },
  {
   "brand": "Abyss",
   "model": "Diana V2",
   "type": "over-ear",
   "impedance_ohm": 42,
   "published_impedance": "",
   "sensitivity_db_mw": 91.0,
   "sensitivity_db_v": 104.8,
   "power_mw_at_100db": 7.943,
   "published_value": 91,
   "published_unit": "dB/mw",
   "published_condition": "the maker's own spelling",
   "basis": "published-per-mW",
   "source_url": "https://abyss-headphones.com/products/diana-v2",
   "page": "https://thephonepath.com/headphones/abyss-diana-v2/"
  },
  {
   "brand": "AFUL",
   "model": "Explorer",
   "type": "iem",
   "impedance_ohm": 26,
   "published_impedance": "26Ω ±10%",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 123.9,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB/mW",
   "published_condition": "not stated",
   "basis": "published-per-mW",
   "source_url": "https://afulaudio.com/products/aful-explorer",
   "page": "https://thephonepath.com/headphones/aful-explorer/"
  },
  {
   "brand": "AFUL",
   "model": "Performer 5",
   "type": "iem",
   "impedance_ohm": 35,
   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 124.6,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://afulaudio.com/products/aful-performer-5-iems",
   "page": "https://thephonepath.com/headphones/aful-performer-5/"
  },
  {
   "brand": "AFUL",
   "model": "Performer 8",
   "type": "iem",
   "impedance_ohm": 30,
   "published_impedance": "",
   "sensitivity_db_mw": 115.0,
   "sensitivity_db_v": 130.2,
   "power_mw_at_100db": 0.032,
   "published_value": 115,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://afulaudio.com/products/aful-performer-8-iems",
   "page": "https://thephonepath.com/headphones/aful-performer-8/"
  },
  {
   "brand": "AKG",
   "model": "K240 MKII",
   "type": "over-ear",
   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 91.4,
   "sensitivity_db_v": 104.0,
   "power_mw_at_100db": 7.244,
   "published_value": 104,
   "published_unit": "dB SPL/V",
   "published_condition": "1 V at 1 kHz (AKG heads the column 'Sensitivity (dB SPL/V @ 1 kHz)')",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K240MKII.html",
   "page": "https://thephonepath.com/headphones/akg-k240-mkii/"
  },
  {
   "brand": "AKG",
   "model": "K240 Studio",
   "type": "over-ear",
   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 91.4,
   "sensitivity_db_v": 104.0,
   "power_mw_at_100db": 7.244,
   "published_value": 104,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K240-Studio.html",
   "page": "https://thephonepath.com/headphones/akg-k240-studio/"
  },
  {
   "brand": "AKG",
   "model": "K271 MKII",
   "type": "over-ear",
   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 91.4,
   "sensitivity_db_v": 104.0,
   "power_mw_at_100db": 7.244,
   "published_value": 104,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/K271MKII.html",
   "page": "https://thephonepath.com/headphones/akg-k271-mkii/"
  },
  {
   "brand": "AKG",
   "model": "K361",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 99.1,
   "sensitivity_db_v": 114.0,
   "power_mw_at_100db": 1.23,
   "published_value": 114,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K361.html",
   "page": "https://thephonepath.com/headphones/akg-k361/"
  },
  {
   "brand": "AKG",
   "model": "K371",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 99.1,
   "sensitivity_db_v": 114.0,
   "power_mw_at_100db": 1.23,
   "published_value": 114,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K371.html",
   "page": "https://thephonepath.com/headphones/akg-k371/"
  },
  {
   "brand": "AKG",
   "model": "K52",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 95.1,
   "sensitivity_db_v": 110.0,
   "power_mw_at_100db": 3.09,
   "published_value": 110,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K52.html",
   "page": "https://thephonepath.com/headphones/akg-k52/"
  },
  {
   "brand": "AKG",
   "model": "K612 Pro",
   "type": "over-ear",
   "impedance_ohm": 120,
   "published_impedance": "",
   "sensitivity_db_mw": 91.8,
   "sensitivity_db_v": 101.0,
   "power_mw_at_100db": 6.607,
   "published_value": 101,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K612PRO.html",
   "page": "https://thephonepath.com/headphones/akg-k612-pro/"
  },
  {
   "brand": "AKG",
   "model": "K701",
   "type": "over-ear",
   "impedance_ohm": 62,
   "published_impedance": "",
   "sensitivity_db_mw": 92.9,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 5.129,
   "published_value": 105,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/pro-b-stock-sale/K701+(B-Stock).html",
   "page": "https://thephonepath.com/headphones/akg-k701/"
  },
  {
   "brand": "AKG",
   "model": "K702",
   "type": "over-ear",
   "impedance_ohm": 62,
   "published_impedance": "",
   "sensitivity_db_mw": 92.9,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 5.129,
   "published_value": 105,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K702.html",
   "page": "https://thephonepath.com/headphones/akg-k702/"
  },
  {
   "brand": "AKG",
   "model": "K712 Pro",
   "type": "over-ear",
   "impedance_ohm": 62,
   "published_impedance": "",
   "sensitivity_db_mw": 92.9,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 5.129,
   "published_value": 105,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/Headphones/Professional%20Headphones/K712PRO.html",
   "page": "https://thephonepath.com/headphones/akg-k712-pro/"
  },
  {
   "brand": "AKG",
   "model": "K7XX (Drop)",
   "type": "over-ear",
   "impedance_ohm": 62,
   "published_impedance": "",
   "sensitivity_db_mw": 93.0,
   "sensitivity_db_v": 105.1,
   "power_mw_at_100db": 5.012,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://drop.com/buy/akg-k7xx-massdrop-first-edition-headphones",
   "page": "https://thephonepath.com/headphones/akg-k7xx-drop/"
  },
  {
   "brand": "AKG",
   "model": "K872",
   "type": "over-ear",
   "impedance_ohm": 36,
   "published_impedance": "",
   "sensitivity_db_mw": 97.6,
   "sensitivity_db_v": 112.0,
   "power_mw_at_100db": 1.738,
   "published_value": 112,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/K872.html",
   "page": "https://thephonepath.com/headphones/akg-k872/"
  },
  {
   "brand": "AKG",
   "model": "K92",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 98.1,
   "sensitivity_db_v": 113.0,
   "power_mw_at_100db": 1.549,
   "published_value": 113,
   "published_unit": "dB SPL/V",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.akg.com/headphones/professional-headphones/K92.html",
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   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 111.5,
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  },
  {
   "brand": "Audio-Technica",
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   "impedance_ohm": 47,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 109.3,
   "power_mw_at_100db": 2.512,
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   "basis": "unit-not-stated-by-maker",
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   "page": "https://thephonepath.com/headphones/audio-technica-ath-m20x/"
  },
  {
   "brand": "Audio-Technica",
   "model": "ATH-M30X",
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   "impedance_ohm": 47,
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   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 109.3,
   "power_mw_at_100db": 2.512,
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  },
  {
   "brand": "Audio-Technica",
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   "impedance_ohm": 35,
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   "sensitivity_db_mw": 98.0,
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  },
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   "power_mw_at_100db": 1.259,
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  {
   "brand": "Audio-Technica",
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   "sensitivity_db_mw": 102.0,
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  {
   "brand": "Audio-Technica",
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   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 111.6,
   "power_mw_at_100db": 1.995,
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  {
   "brand": "Audio-Technica",
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   "impedance_ohm": 50,
   "published_impedance": "",
   "sensitivity_db_mw": 93.3,
   "sensitivity_db_v": 106.3,
   "power_mw_at_100db": 4.677,
   "published_value": 93.3,
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   "published_condition": "",
   "basis": "published-per-mW",
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  },
  {
   "brand": "Audio-Technica",
   "model": "ATH-R70X",
   "type": "over-ear",
   "impedance_ohm": 470,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 101.3,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
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   "basis": "published-per-mW",
   "source_url": "https://www.audio-technica.com/en-us/ath-r70x",
   "page": "https://thephonepath.com/headphones/audio-technica-ath-r70x/"
  },
  {
   "brand": "Audio-Technica",
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   "impedance_ohm": 470,
   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 100.3,
   "power_mw_at_100db": 1.995,
   "published_value": 97,
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   "basis": "published-per-mW",
   "source_url": "https://www.audio-technica.com/en-us/ath-r70xa",
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  {
   "brand": "Audio-Technica",
   "model": "ATH-W1000Z",
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   "impedance_ohm": 43,
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   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": 114.7,
   "power_mw_at_100db": 0.794,
   "published_value": 101,
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   "published_condition": "1 mW",
   "basis": "published-per-mW",
   "source_url": "https://www.audio-technica.com/en-us/ath-w1000z",
   "page": "https://thephonepath.com/headphones/audio-technica-ath-w1000z/"
  },
  {
   "brand": "Audio-Technica",
   "model": "ATH-WP900",
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   "impedance_ohm": 38,
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   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 114.2,
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   "published_condition": "",
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   "source_url": "https://www.audio-technica.com/en-us/ath-wp900",
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  {
   "brand": "Austrian Audio",
   "model": "Hi-X15",
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   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 113.0,
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   "published_value": 113,
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   "page": "https://thephonepath.com/headphones/austrian-audio-hi-x15/"
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  {
   "brand": "Austrian Audio",
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   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 113.0,
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   "published_condition": "",
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   "source_url": "https://austrian.audio/product/hi-x20/",
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  {
   "brand": "Austrian Audio",
   "model": "Hi-X25BT",
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   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 113.0,
   "sensitivity_db_v": 129.0,
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   "published_value": 113,
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   "basis": "unit-not-stated-by-maker",
   "source_url": "https://austrian.audio/product/hi-x25bt/",
   "page": "https://thephonepath.com/headphones/austrian-audio-hi-x25bt/"
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  {
   "brand": "Austrian Audio",
   "model": "Hi-X55",
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   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 0.631,
   "published_value": 118,
   "published_unit": "dBspl/V",
   "published_condition": "1 V (no measurement frequency stated)",
   "basis": "converted-from-per-volt",
   "source_url": "https://austrian.audio/product/hi-x55/",
   "page": "https://thephonepath.com/headphones/austrian-audio-hi-x55/"
  },
  {
   "brand": "Austrian Audio",
   "model": "Hi-X60",
   "type": "over-ear",
   "impedance_ohm": 25,
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   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 110.0,
   "power_mw_at_100db": 3.981,
   "published_value": 110,
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   "basis": "converted-from-per-volt",
   "source_url": "https://austrian.audio/product/hi-x60/",
   "page": "https://thephonepath.com/headphones/austrian-audio-hi-x60/"
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  {
   "brand": "Austrian Audio",
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   "sensitivity_db_mw": 94.0,
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   "source_url": "https://austrian.audio/product/hi-x65/",
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  {
   "brand": "Austrian Audio",
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   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 110.0,
   "power_mw_at_100db": 3.981,
   "published_value": 110,
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   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://austrian.audio/product/the-arranger/",
   "page": "https://thephonepath.com/headphones/austrian-audio-the-arranger/"
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  {
   "brand": "Austrian Audio",
   "model": "The Composer",
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   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 95.4,
   "sensitivity_db_v": 112.0,
   "power_mw_at_100db": 2.884,
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   "published_condition": "no frequency stated alongside the sensitivity; THD '< 0.1%' is given at 1 kHz",
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   "source_url": "https://austrian.audio/download/the-composer-spec-sheet/thecomposer_specsheet_eng/?attachment_id=13449&download_file=1",
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  {
   "brand": "Bang & Olufsen",
   "model": "Beoplay H95",
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   "impedance_ohm": 12,
   "published_impedance": "",
   "sensitivity_db_mw": 101.5,
   "sensitivity_db_v": 120.7,
   "power_mw_at_100db": 0.708,
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   "basis": "published-per-mW",
   "source_url": "https://bangolufsenrmaskillgohel.blob.core.windows.net/zendesk-guide/User%20Guide%20Files/Headphones/Beoplay%20H95/Product-sheet_H95_EN.pdf",
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  {
   "brand": "Bang & Olufsen",
   "model": "Beoplay H9i",
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   "impedance_ohm": 24,
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   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 111.2,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
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   "published_condition": "@ 1 kHz +/-3 dB",
   "basis": "published-per-mW",
   "source_url": "https://assets.ctfassets.net/8cd2csgvqd3m/6LWdDxS5CMnVnTGDObckyC/65eca62aa80ea5dce4715d934f9309c3/H9i_Product_Sheet.pdf",
   "page": "https://thephonepath.com/headphones/bang-and-olufsen-beoplay-h9i/"
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  {
   "brand": "Beyerdynamic",
   "model": "Amiron Home",
   "type": "over-ear",
   "impedance_ohm": 250,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB (per mW - reference condition printed)",
   "published_condition": "1 mW / 500 Hz",
   "basis": "published-per-mW",
   "source_url": "https://north-america.beyerdynamic.com/p/amiron-home",
   "page": "https://thephonepath.com/headphones/beyerdynamic-amiron-home/"
  },
  {
   "brand": "Beyerdynamic",
   "model": "Custom One Pro Plus",
   "type": "over-ear",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 114.0,
   "power_mw_at_100db": 2.512,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://global.beyerdynamic.com/custom-one-pro-plus.html",
   "page": "https://thephonepath.com/headphones/beyerdynamic-custom-one-pro-plus/"
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  {
   "brand": "Beyerdynamic",
   "model": "Custom Studio",
   "type": "over-ear",
   "impedance_ohm": 80,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 107.0,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://global.beyerdynamic.com/custom-studio.html",
   "page": "https://thephonepath.com/headphones/beyerdynamic-custom-studio/"
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  {
   "brand": "Beyerdynamic",
   "model": "DJ 300 PRO X",
   "type": "over-ear",
   "impedance_ohm": 48,
   "published_impedance": "",
   "sensitivity_db_mw": 115.0,
   "sensitivity_db_v": 128.2,
   "power_mw_at_100db": 0.032,
   "published_value": 115,
   "published_unit": "",
   "published_condition": "On-ear wearing position (beyerdynamic also prints 109 dB for the over-ear position)",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://north-america.beyerdynamic.com/p/dj-300-pro-x",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dj-300-pro-x/"
  },
  {
   "brand": "Beyerdynamic",
   "model": "DT 1350",
   "type": "over-ear",
   "impedance_ohm": 80,
   "published_impedance": "",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "",
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   "source_url": "https://north-america.beyerdynamic.com/dt-1350.html",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-1350/"
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  {
   "brand": "Beyerdynamic",
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   "impedance_ohm": 250,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 0.631,
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   "published_unit": "dBSPL (1mW/500Hz)",
   "published_condition": "1 mW at 500 Hz",
   "basis": "published-per-mW",
   "source_url": "https://europe.beyerdynamic.com/p/dt-1770-pro-b-stock",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-1770-pro/"
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  {
   "brand": "Beyerdynamic",
   "model": "DT 1770 PRO MKII",
   "type": "over-ear",
   "impedance_ohm": 30,
   "published_impedance": "",
   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 110.2,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
   "published_unit": "dBSPL (1mW/500Hz)",
   "published_condition": "1 mW at 500 Hz",
   "basis": "published-per-mW",
   "source_url": "https://north-america.beyerdynamic.com/p/dt-1770-pro-mk-2",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-1770-pro-mkii/"
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  {
   "brand": "Beyerdynamic",
   "model": "DT 1990 Pro (250Ω)",
   "type": "over-ear",
   "impedance_ohm": 250,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
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   "published_condition": "1 mW / 500 Hz",
   "basis": "published-per-mW",
   "source_url": "https://europe.beyerdynamic.com/p/dt-1990-pro-b-stock",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-1990-pro-250ohm/"
  },
  {
   "brand": "Beyerdynamic",
   "model": "DT 1990 PRO MK II",
   "type": "over-ear",
   "impedance_ohm": 30,
   "published_impedance": "",
   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 109.2,
   "power_mw_at_100db": 3.981,
   "published_value": 94,
   "published_unit": "dBSPL",
   "published_condition": "1mW/500Hz",
   "basis": "published-per-mW",
   "source_url": "https://north-america.beyerdynamic.com/p/dt-1990-pro-mk-2",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-1990-pro-mk-ii/"
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  {
   "brand": "Beyerdynamic",
   "model": "DT 240 Pro",
   "type": "over-ear",
   "impedance_ohm": 34,
   "published_impedance": "",
   "sensitivity_db_mw": 99.0,
   "sensitivity_db_v": 113.7,
   "power_mw_at_100db": 1.259,
   "published_value": 99,
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   "published_condition": "1 mW at 500 Hz",
   "basis": "published-per-mW",
   "source_url": "https://north-america.beyerdynamic.com/dt-240-pro.html",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-240-pro/"
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  {
   "brand": "Beyerdynamic",
   "model": "DT 270 PRO",
   "type": "over-ear",
   "impedance_ohm": 45,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 109.5,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://north-america.beyerdynamic.com/p/dt-270-pro",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-270-pro/"
  },
  {
   "brand": "Beyerdynamic",
   "model": "DT 275 PRO",
   "type": "over-ear",
   "impedance_ohm": 45,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 118.5,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://north-america.beyerdynamic.com/p/dt-275-pro",
   "page": "https://thephonepath.com/headphones/beyerdynamic-dt-275-pro/"
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  {
   "brand": "Beyerdynamic",
   "model": "DT 700 Pro X",
   "type": "over-ear",
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  {
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  {
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  {
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   "basis": "not-published-by-maker",
   "source_url": "https://www.campfireaudio.com/collections/all",
   "page": "https://thephonepath.com/headphones/campfire-audio-solaris-2020/"
  },
  {
   "brand": "CCA",
   "model": "CRA",
   "type": "iem",
   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 121.0,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "not stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://ccaaudio.com/products/cca-cra-hi-fi-earphones",
   "page": "https://thephonepath.com/headphones/cca-cra/"
  },
  {
   "brand": "CCA",
   "model": "Xyrra",
   "type": "iem",
   "impedance_ohm": 27,
   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 125.7,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "",
   "published_condition": "±3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://ccaaudio.com/products/cca-xyrra-hybrid-gaming-iem",
   "page": "https://thephonepath.com/headphones/cca-xyrra/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "AEON 2 Closed",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/headphones/aeon/%C3%86ON-2.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-aeon-2-closed/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "AEON 2 Noire",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/headphones/aeon/aeon-noire.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-aeon-2-noire/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "AEON 2 Open",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/headphones/aeon/%C3%86ON-2.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-aeon-2-open/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "AEON RT",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "Dan Clark states no measurement condition beyond the unit, and prefixes the value with a tilde (\"~90 dB/mW\"), so it is an approximation",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/aeon-rt-new-1.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-aeon-rt/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "E3",
   "type": "over-ear",
   "impedance_ohm": 27,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 105.7,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/headphones/e31.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-e3/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "Ether C Flow 1.1",
   "type": "over-ear",
   "impedance_ohm": 23,
   "published_impedance": "",
   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 110.4,
   "power_mw_at_100db": 3.981,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://danclarkaudio.com/",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-ether-c-flow-1-1/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "Expanse",
   "type": "over-ear",
   "impedance_ohm": 26,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 105.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/catalog/category/view/s/expanse-2/id/109/",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-expanse/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "Noire X",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/noirex.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-noire-x/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "NOIRE XO",
   "type": "over-ear",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 108.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "printed with a tilde: \"~90 dB/mW\"",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/catalog/category/view/s/noirexo/id/114/",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-noire-xo/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "Stealth",
   "type": "over-ear",
   "impedance_ohm": 23,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 106.4,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "dB/mW",
   "published_condition": "none stated; DCA prints '~90 dB/mW'. DCA does state a separate THD reference: 'less than 0.03% 20-20KHz, ref. 1KHz at 94dB'",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/headphones/stealth-2.html",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-stealth/"
  },
  {
   "brand": "Dan Clark Audio",
   "model": "ÆON Core",
   "type": "over-ear",
   "impedance_ohm": 17,
   "published_impedance": "",
   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 111.7,
   "power_mw_at_100db": 3.981,
   "published_value": 94,
   "published_unit": "dB/mW",
   "published_condition": "printed with a tilde: \"~94 dB/mW\"",
   "basis": "published-per-mW",
   "source_url": "https://danclarkaudio.com/catalog/category/view/s/aeon-core/id/118/",
   "page": "https://thephonepath.com/headphones/dan-clark-audio-on-core/"
  },
  {
   "brand": "Denon",
   "model": "AH-D2000",
   "type": "over-ear",
   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 122.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB/mW",
   "published_condition": "1 mW",
   "basis": "published-per-mW",
   "source_url": "https://assets.denon.com/documentmaster/us/ah-5000_2000_1000-lit.pdf",
   "page": "https://thephonepath.com/headphones/denon-ah-d2000/"
  },
  {
   "brand": "Denon",
   "model": "AH-D5200",
   "type": "over-ear",
   "impedance_ohm": 24,
   "published_impedance": "",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 119.2,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB/mW",
   "published_condition": "1 mW",
   "basis": "published-per-mW",
   "source_url": "https://www.denon.com/on/demandware.static/-/Library-Sites-denon_northamerica_shared/default/dwc3aee72e/downloads/ah-d5200-info-sheet-en.pdf",
   "page": "https://thephonepath.com/headphones/denon-ah-d5200/"
  },
  {
   "brand": "Denon",
   "model": "AH-D7200",
   "type": "over-ear",
   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 121.0,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "1 mW",
   "basis": "published-per-mW",
   "source_url": "https://www.denon.com/on/demandware.static/-/Library-Sites-denon_northamerica_shared/default/dw5d669963/downloads/ah-d7200-info-sheet-en.pdf",
   "page": "https://thephonepath.com/headphones/denon-ah-d7200/"
  },
  {
   "brand": "Denon",
   "model": "AH-D9200",
   "type": "over-ear",
   "impedance_ohm": 24,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 121.2,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "1 mW",
   "basis": "published-per-mW",
   "source_url": "https://www.denon.com/en-us/product/over-ear-headphones/ah-d9200/137241.html",
   "page": "https://thephonepath.com/headphones/denon-ah-d9200/"
  },
  {
   "brand": "Denon",
   "model": "AH-MM400",
   "type": "over-ear",
   "impedance_ohm": 40,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.0,
   "power_mw_at_100db": 0.316,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.denon.com/en-us/product/archive-noise-canceling/ah-mm400/AHMM400.html",
   "page": "https://thephonepath.com/headphones/denon-ah-mm400/"
  },
  {
   "brand": "DITA Audio",
   "model": "Dream XLS",
   "type": "over-ear",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 120.6,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB",
   "published_condition": "none stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://ditaaudio.com/pages/technical-specifications-dream-xls",
   "page": "https://thephonepath.com/headphones/dita-audio-dream-xls/"
  },
  {
   "brand": "DITA Audio",
   "model": "Perpetua",
   "type": "over-ear",
   "impedance_ohm": 20,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB",
   "published_condition": "none stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://ditaaudio.com/products/perpetua",
   "page": "https://thephonepath.com/headphones/dita-audio-perpetua/"
  },
  {
   "brand": "Drop",
   "model": "THX Panda",
   "type": "over-ear",
   "impedance_ohm": 26,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 117.9,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB/ 1 Mw",
   "published_condition": "1 Mw (1 Khz) — the maker’s own spelling; the Quick Start Guide gives the same figure as \"Sensitivity (Passive Mode) 102 dB in 1 mW\"",
   "basis": "published-per-mW",
   "source_url": "https://docs.drop.com/drop-panda-manual.pdf",
   "page": "https://thephonepath.com/headphones/drop-thx-panda/"
  },
  {
   "brand": "Dunu",
   "model": "Alpha 3",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.9,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB",
   "published_condition": "±1dB @ 1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/alpha-3",
   "page": "https://thephonepath.com/headphones/dunu-alpha-3/"
  },
  {
   "brand": "Dunu",
   "model": "DK3001 BD",
   "type": "over-ear",
   "impedance_ohm": 26,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 123.9,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB/mW",
   "published_condition": "@ 1 kHz; DUNU also prints the per-volt figure alongside: '122 dB/Vrms @ 1 kHz'",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/dk3001bd",
   "page": "https://thephonepath.com/headphones/dunu-dk3001-bd/"
  },
  {
   "brand": "Dunu",
   "model": "DN-142",
   "type": "iem",
   "impedance_ohm": 37,
   "published_impedance": "",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 121.3,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "dB/mW",
   "published_condition": "(@1kHz)",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/dn-142",
   "page": "https://thephonepath.com/headphones/dunu-dn-142/"
  },
  {
   "brand": "Dunu",
   "model": "Falcon Ultra",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "16Ω @ 1kHz",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 126.0,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±1dB @ 1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/falcon-ultra",
   "page": "https://thephonepath.com/headphones/dunu-falcon-ultra/"
  },
  {
   "brand": "Dunu",
   "model": "Glacier",
   "type": "iem",
   "impedance_ohm": 43,
   "published_impedance": "43 Ω at 1 kHz",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 122.7,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "dB/mW",
   "published_condition": "(@1kHz) (DUNU also prints 122 dB/Vrms at 1 kHz)",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/glacier",
   "page": "https://thephonepath.com/headphones/dunu-glacier/"
  },
  {
   "brand": "Dunu",
   "model": "Kima",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32Ω @ 1kHz",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 122.9,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±1dB @ 1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/copy-of-glacier",
   "page": "https://thephonepath.com/headphones/dunu-kima/"
  },
  {
   "brand": "Dunu",
   "model": "KIMA 2",
   "type": "iem",
   "impedance_ohm": 20,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB/mW",
   "published_condition": "@ 1 kHz (DUNU also prints 125 dB/Vrms @ 1 kHz)",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/kima-2",
   "page": "https://thephonepath.com/headphones/dunu-kima-2/"
  },
  {
   "brand": "Dunu",
   "model": "SA6 MKII",
   "type": "over-ear",
   "impedance_ohm": 24,
   "published_impedance": "24 Ω at 1 kHz",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 130.2,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
   "published_unit": "dB",
   "published_condition": "± 1 dB at 1 kHz; no power or voltage reference stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/sa6-mkii",
   "page": "https://thephonepath.com/headphones/dunu-sa6-mkii/"
  },
  {
   "brand": "Dunu",
   "model": "Titan S",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32 Ω at 1 kHz",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 124.9,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "± 1 dB at 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/titan-s",
   "page": "https://thephonepath.com/headphones/dunu-titan-s/"
  },
  {
   "brand": "Dunu",
   "model": "Titan S2",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "16 Ω at 1 kHz",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "dB/mW",
   "published_condition": "(@1kHz) (DUNU also prints 125 dB/Vrms at 1 kHz)",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/titan-s2",
   "page": "https://thephonepath.com/headphones/dunu-titan-s2/"
  },
  {
   "brand": "Dunu",
   "model": "Vulkan",
   "type": "over-ear",
   "impedance_ohm": 15,
   "published_impedance": "15 Ω at 1 kHz",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 127.2,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "dB",
   "published_condition": "± 1 dB at 1 kHz; no power or voltage reference stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.dunu-topsound.com/product-page/vulkan",
   "page": "https://thephonepath.com/headphones/dunu-vulkan/"
  },
  {
   "brand": "Dunu",
   "model": "Vulkan 2",
   "type": "iem",
   "impedance_ohm": 35,
   "published_impedance": "",
   "sensitivity_db_mw": 113.0,
   "sensitivity_db_v": 127.6,
   "power_mw_at_100db": 0.05,
   "published_value": 113,
   "published_unit": "dB/mW",
   "published_condition": "(@1kHz) (DUNU also prints 128dB/Vrms (@1kHz))",
   "basis": "published-per-mW",
   "source_url": "https://www.dunu-topsound.com/product-page/vulkan-2-launch-special-30-off-code-vk230",
   "page": "https://thephonepath.com/headphones/dunu-vulkan-2/"
  },
  {
   "brand": "Elysian Acoustic Labs",
   "model": "Annihilator",
   "type": "over-ear",
   "impedance_ohm": 22,
   "published_impedance": "22ohms @ 1khz",
   "sensitivity_db_mw": 99.4,
   "sensitivity_db_v": 116.0,
   "power_mw_at_100db": 1.148,
   "published_value": 96,
   "published_unit": "db",
   "published_condition": "@100mV @1khz (printed verbatim as '96db @100mV @1khz')",
   "basis": "converted-from-stated-voltage",
   "source_url": "https://elysianacousticlabs.com/products/annihilator-2026",
   "page": "https://thephonepath.com/headphones/elysian-acoustic-labs-annihilator/"
  },
  {
   "brand": "Elysian Acoustic Labs",
   "model": "Annihilator 2026",
   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "22ohms @ 1khz",
   "sensitivity_db_mw": 99.4,
   "sensitivity_db_v": 116.0,
   "power_mw_at_100db": 1.148,
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   "published_unit": "",
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   "page": "https://thephonepath.com/headphones/elysian-acoustic-labs-annihilator-2026/"
  },
  {
   "brand": "Elysian Acoustic Labs",
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   "impedance_ohm": 10,
   "published_impedance": "10 Ohms@1kHz",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 117.0,
   "power_mw_at_100db": 1.995,
   "published_value": 97,
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   "source_url": "https://elysianacousticlabs.com/products/apostle2026",
   "page": "https://thephonepath.com/headphones/elysian-acoustic-labs-apostle-2026/"
  },
  {
   "brand": "Elysian Acoustic Labs",
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   "impedance_ohm": 9,
   "published_impedance": "9 Ohms @1khz",
   "sensitivity_db_mw": 100.5,
   "sensitivity_db_v": 121.0,
   "power_mw_at_100db": 0.891,
   "published_value": 101,
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   "published_condition": "@1khz @100mV (printed verbatim as '101db @1khz @100mV')",
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   "source_url": "https://elysianacousticlabs.com/products/pilgrim",
   "page": "https://thephonepath.com/headphones/elysian-acoustic-labs-pilgrim/"
  },
  {
   "brand": "Elysian Acoustic Labs",
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   "impedance_ohm": 8.3,
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   "sensitivity_db_mw": 102.2,
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   "power_mw_at_100db": 0.603,
   "published_value": 103,
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   "page": "https://thephonepath.com/headphones/elysian-acoustic-labs-pilgrim-noir/"
  },
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   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 124.9,
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   "source_url": "https://epzaudio.com/products/epz-530-pro-iems-5-ba-sonion-wood-earphones",
   "page": "https://thephonepath.com/headphones/epz-530-pro/"
  },
  {
   "brand": "EPZ",
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   "impedance_ohm": 28,
   "published_impedance": "",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 129.5,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
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   "source_url": "https://epzaudio.com/products/epz-k5-iems-hybrid-1dd-4ba-earphones",
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  },
  {
   "brand": "EPZ",
   "model": "Q5 Pro",
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   "impedance_ohm": 24,
   "published_impedance": "",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 125.2,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
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   "source_url": "https://epzaudio.com/products/epz-q5-pro-iems",
   "page": "https://thephonepath.com/headphones/epz-q5-pro/"
  },
  {
   "brand": "EPZ",
   "model": "Star One",
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   "impedance_ohm": 64,
   "published_impedance": "64Ω (±15%) @1kHz",
   "sensitivity_db_mw": 100.1,
   "sensitivity_db_v": 112.0,
   "power_mw_at_100db": 0.977,
   "published_value": 112,
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   "basis": "converted-from-per-volt",
   "source_url": "https://epzaudio.com/products/epz-tipsy-star-one-wired-iem-silver-plated-cable-hifi-monitor",
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  },
  {
   "brand": "Etymotic",
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   "impedance_ohm": 15,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 114.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
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   "published_condition": "1 kHz, 1 mW",
   "basis": "published-per-mW",
   "source_url": "https://etymotic.com/products/er2se-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er2se/"
  },
  {
   "brand": "Etymotic",
   "model": "ER2XR",
   "type": "iem",
   "impedance_ohm": 15,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 114.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
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   "published_condition": "1 kHz, 1 mW",
   "basis": "published-per-mW",
   "source_url": "https://etymotic.com/products/er2xr-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er2xr/"
  },
  {
   "brand": "Etymotic",
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   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 118.6,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB @ 1kHz, 1mW (per milliwatt)",
   "published_condition": "1 kHz, 1 mW",
   "basis": "published-per-mW",
   "source_url": "https://etymotic.com/products/er3se-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er3se/"
  },
  {
   "brand": "Etymotic",
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   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 118.6,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB @ 1kHz, 1mW (per milliwatt)",
   "published_condition": "1 kHz, 1 mW",
   "basis": "published-per-mW",
   "source_url": "https://etymotic.com/products/er3xr-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er3xr/"
  },
  {
   "brand": "Etymotic",
   "model": "ER4SR",
   "type": "iem",
   "impedance_ohm": 45,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 111.5,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB @ 1kHz, 1mW (per milliwatt)",
   "published_condition": "1 kHz, 1 mW",
   "basis": "published-per-mW",
   "source_url": "https://etymotic.com/products/er4xr-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er4sr/"
  },
  {
   "brand": "Etymotic",
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   "type": "iem",
   "impedance_ohm": 45,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 111.5,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
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   "source_url": "https://etymotic.com/products/er4xr-earphones",
   "page": "https://thephonepath.com/headphones/etymotic-er4xr/"
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  {
   "brand": "FiiO",
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   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 126.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
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   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fa19",
   "page": "https://thephonepath.com/headphones/fiio-fa19/"
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  {
   "brand": "FiiO",
   "model": "FD11",
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   "published_impedance": "24Ω@1kHz",
   "sensitivity_db_mw": 111.0,
   "sensitivity_db_v": 127.2,
   "power_mw_at_100db": 0.079,
   "published_value": 111,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
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  },
  {
   "brand": "FiiO",
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   "published_impedance": "32Ω@1kHz",
   "sensitivity_db_mw": 112.0,
   "sensitivity_db_v": 126.9,
   "power_mw_at_100db": 0.063,
   "published_value": 112,
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   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fd15",
   "page": "https://thephonepath.com/headphones/fiio-fd15/"
  },
  {
   "brand": "FiiO",
   "model": "FH11",
   "type": "iem",
   "impedance_ohm": 24,
   "published_impedance": "24Ω@1kHz",
   "sensitivity_db_mw": 111.0,
   "sensitivity_db_v": 127.2,
   "power_mw_at_100db": 0.079,
   "published_value": 111,
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   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fh11",
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  {
   "brand": "FiiO",
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   "published_impedance": "16Ω@1kHz",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 127.0,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fh19",
   "page": "https://thephonepath.com/headphones/fiio-fh19/"
  },
  {
   "brand": "FiiO",
   "model": "FP3",
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   "impedance_ohm": 36,
   "published_impedance": "36Ω@1kHz",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.4,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fp3",
   "page": "https://thephonepath.com/headphones/fiio-fp3/"
  },
  {
   "brand": "FiiO",
   "model": "FT1",
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   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 112.9,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/ft1",
   "page": "https://thephonepath.com/headphones/fiio-ft1/"
  },
  {
   "brand": "FiiO",
   "model": "FT1 Pro",
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   "published_impedance": "",
   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 112.0,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/ft1pro",
   "page": "https://thephonepath.com/headphones/fiio-ft1-pro/"
  },
  {
   "brand": "FiiO",
   "model": "FT3 (32Ω)",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 95.1,
   "sensitivity_db_v": 110.0,
   "power_mw_at_100db": 3.09,
   "published_value": 110,
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   "published_condition": "1 Vrms @ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://fiio-shop.de/EN/FiiO-FT3-32-Ohm/HL02164.32Ohm",
   "page": "https://thephonepath.com/headphones/fiio-ft3-32ohm/"
  },
  {
   "brand": "FiiO",
   "model": "FT3 (350Ω)",
   "type": "over-ear",
   "impedance_ohm": 350,
   "published_impedance": "",
   "sensitivity_db_mw": 100.4,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 0.912,
   "published_value": 105,
   "published_unit": "dB/V",
   "published_condition": "1 Vrms @ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.fiio.com/ft3",
   "page": "https://thephonepath.com/headphones/fiio-ft3-350ohm/"
  },
  {
   "brand": "FiiO",
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   "type": "over-ear",
   "impedance_ohm": 36,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 110.4,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/ft5",
   "page": "https://thephonepath.com/headphones/fiio-ft5/"
  },
  {
   "brand": "FiiO",
   "model": "FX15",
   "type": "iem",
   "impedance_ohm": 24,
   "published_impedance": "24Ω@1kHz",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 119.2,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB/mW",
   "published_condition": "@1kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.fiio.com/fx15",
   "page": "https://thephonepath.com/headphones/fiio-fx15/"
  },
  {
   "brand": "FiiO",
   "model": "JT1",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 88.1,
   "sensitivity_db_v": 103.0,
   "power_mw_at_100db": 15.488,
   "published_value": 103,
   "published_unit": "dB/V",
   "published_condition": "1 Vrms @ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://fiio-shop.de/EN/FiiO-JT1/HL02268.1",
   "page": "https://thephonepath.com/headphones/fiio-jt1/"
  },
  {
   "brand": "Final Audio",
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   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 117.4,
   "power_mw_at_100db": 1.0,
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   "published_unit": "dB/mW",
   "published_condition": "none stated; final prints the unit lowercase as 'dB/mw'",
   "basis": "published-per-mW",
   "source_url": "https://snext-final.com/en/products/detail/A4000",
   "page": "https://thephonepath.com/headphones/final-audio-a4000/"
  },
  {
   "brand": "Final Audio",
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   "impedance_ohm": 18,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 117.4,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://snext-final.com/en/products/detail/A5000",
   "page": "https://thephonepath.com/headphones/final-audio-a5000/"
  },
  {
   "brand": "Final Audio",
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   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 110.2,
   "power_mw_at_100db": 1.585,
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   "published_unit": "dB/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://snext-final.com/en/products/detail/D8000pro",
   "page": "https://thephonepath.com/headphones/final-audio-d8000-pro-edition/"
  },
  {
   "brand": "Final Audio",
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   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "none stated",
   "basis": "published-per-mW",
   "source_url": "https://snext-final.com/en/products/detail/E3000.html",
   "page": "https://thephonepath.com/headphones/final-audio-e3000/"
  },
  {
   "brand": "Final Audio",
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   "impedance_ohm": 14,
   "published_impedance": "",
   "sensitivity_db_mw": 93.0,
   "sensitivity_db_v": 111.5,
   "power_mw_at_100db": 5.012,
   "published_value": 93,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "none stated - final prints the bare figure '93dB' with no per-mW or per-V reference",
   "basis": "unit-not-stated-by-maker",
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   "page": "https://thephonepath.com/headphones/final-audio-e5000/"
  },
  {
   "brand": "Focal",
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   "published_impedance": "",
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   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB SPL / 1mW",
   "published_condition": "@ 1kHz",
   "basis": "published-per-mW",
   "source_url": "https://dam.focal-naim.com/m/2b73193bd0adb188/original/FP_Azurys_EN-pdf.pdf",
   "page": "https://thephonepath.com/headphones/focal-azurys/"
  },
  {
   "brand": "Focal",
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   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.6,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB SPL / 1 mW",
   "published_condition": "@ 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://dam.focal-naim.com/m/43018f58fb8bab0/original/FP_Celestee_EN-pdf.pdf",
   "page": "https://thephonepath.com/headphones/focal-celestee/"
  },
  {
   "brand": "Focal",
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   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 116.6,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB SPL / 1mW",
   "published_condition": "@ 1kHz",
   "basis": "published-per-mW",
   "source_url": "https://dam.focal-naim.com/m/b76a115af3c9428/original/FP_Clear_GB-pdf.pdf",
   "page": "https://thephonepath.com/headphones/focal-clear/"
  },
  {
   "brand": "Focal",
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   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 116.6,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB SPL / 1 mW",
   "published_condition": "@ 1kHz",
   "basis": "published-per-mW",
   "source_url": "https://dam.focal-naim.com/m/104837a82d91925e/original/FP_Clear_Mg_EN-pdf.pdf",
   "page": "https://thephonepath.com/headphones/focal-clear-mg/"
  },
  {
   "brand": "Focal",
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   "impedance_ohm": 55,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 116.6,
   "power_mw_at_100db": 0.398,
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   "impedance_ohm": 50,
   "published_impedance": "",
   "sensitivity_db_mw": 83.5,
   "sensitivity_db_v": 96.5,
   "power_mw_at_100db": 44.668,
   "published_value": 83.5,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://hifiman.com/products/detail/363",
   "page": "https://thephonepath.com/headphones/hifiman-he6-remastered/"
  },
  {
   "brand": "HiFiMAN",
   "model": "HE600",
   "type": "over-ear",
   "impedance_ohm": 28,
   "published_impedance": "",
   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 109.5,
   "power_mw_at_100db": 3.981,
   "published_value": 94,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://hifiman.com/attachments/file/20250824/20250824091515_47251.pdf",
   "page": "https://thephonepath.com/headphones/hifiman-he600/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Jade II",
   "type": "electrostatic",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/298",
   "page": "https://thephonepath.com/headphones/hifiman-jade-ii/"
  },
  {
   "brand": "HiFiMAN",
   "model": "RE800 Gold",
   "type": "iem",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 117.2,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/274",
   "page": "https://thephonepath.com/headphones/hifiman-re800-gold/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Sundara",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 92.0,
   "sensitivity_db_v": 106.9,
   "power_mw_at_100db": 6.31,
   "published_value": 92,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://hifiman.com/products/detail/286",
   "page": "https://thephonepath.com/headphones/hifiman-sundara/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Sundara Closed",
   "type": "over-ear",
   "impedance_ohm": 20,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 115.0,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/324",
   "page": "https://thephonepath.com/headphones/hifiman-sundara-closed/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Susvara",
   "type": "over-ear",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 83.0,
   "sensitivity_db_v": 95.2,
   "power_mw_at_100db": 50.119,
   "published_value": 83,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/275",
   "page": "https://thephonepath.com/headphones/hifiman-susvara/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Susvara Unveiled",
   "type": "over-ear",
   "impedance_ohm": 45,
   "published_impedance": "",
   "sensitivity_db_mw": 86.0,
   "sensitivity_db_v": 99.5,
   "power_mw_at_100db": 25.119,
   "published_value": 86,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/347",
   "page": "https://thephonepath.com/headphones/hifiman-susvara-unveiled/"
  },
  {
   "brand": "HiFiMAN",
   "model": "Svanar Wireless",
   "type": "iem",
   "impedance_ohm": 26,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 113.9,
   "power_mw_at_100db": 1.585,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.hifiman.com/products/detail/336",
   "page": "https://thephonepath.com/headphones/hifiman-svanar-wireless/"
  },
  {
   "brand": "Hisenior",
   "model": "Mega5EST",
   "type": "over-ear",
   "impedance_ohm": 25,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 121.0,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "per 1 mW (no frequency stated)",
   "basis": "published-per-mW",
   "source_url": "https://www.hisenior-iem.com/products/mega5est-hybrid-iem",
   "page": "https://thephonepath.com/headphones/hisenior-mega5est/"
  },
  {
   "brand": "Hisenior",
   "model": "Okavango",
   "type": "over-ear",
   "impedance_ohm": 20,
   "published_impedance": "20Ω±10%",
   "sensitivity_db_mw": 112.0,
   "sensitivity_db_v": 129.0,
   "power_mw_at_100db": 0.063,
   "published_value": 112,
   "published_unit": "db@1mW",
   "published_condition": "@ 1 mW (printed verbatim as '112db@1mW')",
   "basis": "published-per-mW",
   "source_url": "https://www.hisenior-iem.com/products/okavangouniversal",
   "page": "https://thephonepath.com/headphones/hisenior-okavango/"
  },
  {
   "brand": "JBL",
   "model": "Quantum One",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 109.9,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
   "published_unit": "dB",
   "published_condition": "@ 1kHz, 1mW",
   "basis": "published-per-mW",
   "source_url": "https://www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw0b0e0185/pdfs/JBL_Quantum_ONE_SpecSheet_English.pdf",
   "page": "https://thephonepath.com/headphones/jbl-quantum-one/"
  },
  {
   "brand": "JBL",
   "model": "Tour One M2",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 117.0,
   "sensitivity_db_v": 131.9,
   "power_mw_at_100db": 0.02,
   "published_value": 117,
   "published_unit": "dB",
   "published_condition": "at 1kHz/1mW",
   "basis": "published-per-mW",
   "source_url": "https://th.jbl.com/en/headphones-wireless/TOUR-ONE-M2.html",
   "page": "https://thephonepath.com/headphones/jbl-tour-one-m2/"
  },
  {
   "brand": "Juzear",
   "model": "41T",
   "type": "iem",
   "impedance_ohm": 48,
   "published_impedance": "",
   "sensitivity_db_mw": 112.0,
   "sensitivity_db_v": 125.2,
   "power_mw_at_100db": 0.063,
   "published_value": 112,
   "published_unit": "dB SPL/mW",
   "published_condition": "±1dB",
   "basis": "published-per-mW",
   "source_url": "https://juzearaudio.com/products/juzear-41t",
   "page": "https://thephonepath.com/headphones/juzear-41t/"
  },
  {
   "brand": "Juzear",
   "model": "Defiant",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 123.9,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±1dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://juzearaudio.com/products/juzear-x-z-reviews-defiant",
   "page": "https://thephonepath.com/headphones/juzear-defiant/"
  },
  {
   "brand": "Kefine",
   "model": "Delci",
   "type": "iem",
   "impedance_ohm": 28,
   "published_impedance": "28Ω +/- 15%",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 123.5,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.linsoul.com/products/kefine-delci",
   "page": "https://thephonepath.com/headphones/kefine-delci/"
  },
  {
   "brand": "Kefine",
   "model": "Klanar",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "16 Ω +/-15%",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 123.0,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.linsoul.com/products/kefine-klanar",
   "page": "https://thephonepath.com/headphones/kefine-klanar/"
  },
  {
   "brand": "Kennerton",
   "model": "Magni",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 110.9,
   "power_mw_at_100db": 2.512,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "maker-document-unreachable",
   "source_url": "",
   "page": "https://thephonepath.com/headphones/kennerton-magni/"
  },
  {
   "brand": "Kennerton",
   "model": "Odin MK3",
   "type": "over-ear",
   "impedance_ohm": 42,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 113.8,
   "power_mw_at_100db": 1.0,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "maker-document-unreachable",
   "source_url": "",
   "page": "https://thephonepath.com/headphones/kennerton-odin-mk3/"
  },
  {
   "brand": "Kennerton",
   "model": "Thror",
   "type": "over-ear",
   "impedance_ohm": 40,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 114.0,
   "power_mw_at_100db": 1.0,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "maker-document-unreachable",
   "source_url": "",
   "page": "https://thephonepath.com/headphones/kennerton-thror/"
  },
  {
   "brand": "Kennerton",
   "model": "Wodan",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 114.9,
   "power_mw_at_100db": 1.0,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "maker-document-unreachable",
   "source_url": "",
   "page": "https://thephonepath.com/headphones/kennerton-wodan/"
  },
  {
   "brand": "Kinera",
   "model": "Freya Vanir",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 88.0,
   "sensitivity_db_v": 106.0,
   "power_mw_at_100db": 15.849,
   "published_value": 106,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://kineraaudio.com/products/freya-vanir",
   "page": "https://thephonepath.com/headphones/kinera-freya-vanir/"
  },
  {
   "brand": "Kinera",
   "model": "Loki Divine Mark",
   "type": "iem",
   "impedance_ohm": 14,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 123.5,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kineraaudio.com/products/loki-divine-mark",
   "page": "https://thephonepath.com/headphones/kinera-loki-divine-mark/"
  },
  {
   "brand": "Kinera",
   "model": "Mimisbrunnr",
   "type": "iem",
   "impedance_ohm": 43,
   "published_impedance": "",
   "sensitivity_db_mw": 88.3,
   "sensitivity_db_v": 102.0,
   "power_mw_at_100db": 14.791,
   "published_value": 102,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://kineraaudio.com/products/mimisbrunnr",
   "page": "https://thephonepath.com/headphones/kinera-mimisbrunnr/"
  },
  {
   "brand": "Kinera",
   "model": "Nott Phantom",
   "type": "iem",
   "impedance_ohm": 54,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 117.7,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kineraaudio.com/products/nott-phantom",
   "page": "https://thephonepath.com/headphones/kinera-nott-phantom/"
  },
  {
   "brand": "Kinera",
   "model": "Sylvie",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kineraaudio.com/products/sylvie",
   "page": "https://thephonepath.com/headphones/kinera-sylvie/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Airoso",
   "type": "iem",
   "impedance_ohm": 18,
   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 127.4,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dB SPL/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://kiwiears.com/products/kiwi-ears-airoso",
   "page": "https://thephonepath.com/headphones/kiwi-ears-airoso/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Astral",
   "type": "iem",
   "impedance_ohm": 23,
   "published_impedance": "23Ω (±1)",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 121.4,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±1dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-astral",
   "page": "https://thephonepath.com/headphones/kiwi-ears-astral/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Belle",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32Ω (±1Ω)",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 117.9,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB",
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   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-belle",
   "page": "https://thephonepath.com/headphones/kiwi-ears-belle/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Cadenza",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 124.9,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dBSPL/mW",
   "published_condition": "not stated",
   "basis": "published-per-mW",
   "source_url": "https://kiwiears.com/products/kiwi-ears-cadenza",
   "page": "https://thephonepath.com/headphones/kiwi-ears-cadenza/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Cadenza II",
   "type": "iem",
   "impedance_ohm": 18,
   "published_impedance": "18Ω (±1Ω)",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 123.4,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB",
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   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-cadenza-ii",
   "page": "https://thephonepath.com/headphones/kiwi-ears-cadenza-ii/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Chorus",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32Ω (±1Ω)",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 117.9,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB",
   "published_condition": "<103dB (±1dB) @ 1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-x-b_media-chorus",
   "page": "https://thephonepath.com/headphones/kiwi-ears-chorus/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Halcyon",
   "type": "iem",
   "impedance_ohm": 29,
   "published_impedance": "",
   "sensitivity_db_mw": 109.0,
   "sensitivity_db_v": 124.4,
   "power_mw_at_100db": 0.126,
   "published_value": 109,
   "published_unit": "dB",
   "published_condition": "(at 1kHz/mW)",
   "basis": "published-per-mW",
   "source_url": "https://kiwiears.com/products/kiwi-ears-halcyon",
   "page": "https://thephonepath.com/headphones/kiwi-ears-halcyon/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "KE4",
   "type": "iem",
   "impedance_ohm": 28,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 117.5,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±1dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-ke4",
   "page": "https://thephonepath.com/headphones/kiwi-ears-ke4/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Orchestra II",
   "type": "iem",
   "impedance_ohm": 15,
   "published_impedance": "",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 128.2,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dB SPL/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://kiwiears.com/products/kiwi-ears-orchestra-ii",
   "page": "https://thephonepath.com/headphones/kiwi-ears-orchestra-ii/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Orchestra Lite",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 112.0,
   "sensitivity_db_v": 130.0,
   "power_mw_at_100db": 0.063,
   "published_value": 112,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "not stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://kiwiears.com/products/kiwi-ears-orchestra-lite",
   "page": "https://thephonepath.com/headphones/kiwi-ears-orchestra-lite/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Quartet",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "<32ohm",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 124.9,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "db APL/mW",
   "published_condition": "not stated",
   "basis": "published-per-mW",
   "source_url": "https://kiwiears.com/products/kiwi-ears-quartet",
   "page": "https://thephonepath.com/headphones/kiwi-ears-quartet/"
  },
  {
   "brand": "Kiwi Ears",
   "model": "Stardust",
   "type": "iem",
   "impedance_ohm": 13,
   "published_impedance": "",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 125.9,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "dB",
   "published_condition": "±3dB",
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   "page": "https://thephonepath.com/headphones/kiwi-ears-stardust/"
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   "page": "https://thephonepath.com/headphones/koss-esp-95x-plus/"
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  {
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  {
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   "page": "https://thephonepath.com/headphones/koss-kph40-utility/"
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   "page": "https://thephonepath.com/headphones/koss-ksc75/"
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  {
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   "page": "https://thephonepath.com/headphones/koss-porta-pro/"
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   "page": "https://thephonepath.com/headphones/kz-as16-pro/"
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  {
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   "page": "https://thephonepath.com/headphones/kz-prx/"
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  {
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   "page": "https://thephonepath.com/headphones/kz-zs10-pro/"
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  {
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   "page": "https://thephonepath.com/headphones/kz-zsx/"
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  {
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  {
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  {
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  {
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  {
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   "page": "https://thephonepath.com/headphones/letshuoer-s15/"
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  {
   "brand": "Marshall",
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   "page": "https://thephonepath.com/headphones/marshall-monitor-ii-anc/"
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  {
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  {
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   "page": "https://thephonepath.com/headphones/meze-105-silva/"
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  {
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   "page": "https://thephonepath.com/headphones/meze-109-pro/"
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  {
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   "page": "https://thephonepath.com/headphones/meze-99-classics/"
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  {
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  {
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  {
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   "page": "https://thephonepath.com/headphones/meze-alba/"
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  {
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   "page": "https://thephonepath.com/headphones/meze-arta/"
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  {
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   "source_url": "https://mezeaudio.com/products/elite-tungsten",
   "page": "https://thephonepath.com/headphones/meze-elite/"
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  {
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   "source_url": "https://mezeaudio.com/products/elite-tungsten",
   "page": "https://thephonepath.com/headphones/meze-elite-tungsten/"
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  {
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  {
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   "page": "https://thephonepath.com/headphones/meze-empyrean-ii/"
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  {
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  {
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   "page": "https://thephonepath.com/headphones/meze-poet/"
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  {
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  {
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  {
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  {
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  {
   "brand": "Moondrop",
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  {
   "brand": "Moondrop",
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   "sensitivity_db_mw": 104.1,
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   "basis": "converted-from-per-volt",
   "source_url": "https://moondroplab.com/en/products/ariase",
   "page": "https://thephonepath.com/headphones/moondrop-aria-snow-edition/"
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  {
   "brand": "Moondrop",
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   "sensitivity_db_mw": 98.0,
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  },
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   "sensitivity_db_mw": 100.4,
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  {
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  {
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  {
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  {
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  {
   "brand": "Moondrop",
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  {
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  {
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  {
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  {
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  {
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  {
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   "page": "https://thephonepath.com/headphones/nicehck-f1-pro/"
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   "page": "https://thephonepath.com/headphones/nicehck-himalaya/"
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  {
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   "page": "https://thephonepath.com/headphones/ollo-audio-s5x/"
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  {
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  {
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  {
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   "page": "https://thephonepath.com/headphones/oppo-pm-3/"
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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  {
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   "published_condition": "@1kHz, silver steel tube + red silicone ring",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.linsoul.com/products/simgot-ew300",
   "page": "https://thephonepath.com/headphones/simgot-ew300/"
  },
  {
   "brand": "Simgot",
   "model": "SuperMix 4",
   "type": "iem",
   "impedance_ohm": 7.2,
   "published_impedance": "7.2Ω ± 15% (@1kHz)",
   "sensitivity_db_mw": 98.6,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 1.38,
   "published_value": 120,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.linsoul.com/products/simgot-supermix-4",
   "page": "https://thephonepath.com/headphones/simgot-supermix-4/"
  },
  {
   "brand": "Sivga",
   "model": "Luan",
   "type": "over-ear",
   "impedance_ohm": 38,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 114.2,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "quoted with tolerance: 100 dB +/- 3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://sivgashop.com/products/luan",
   "page": "https://thephonepath.com/headphones/sivga-luan/"
  },
  {
   "brand": "Sivga",
   "model": "Oriole",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "32 Ohm +/-15%",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 122.9,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "quoted with tolerance: 108dB +/- 3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.sivgaaudio.com/product_d?id=14",
   "page": "https://thephonepath.com/headphones/sivga-oriole/"
  },
  {
   "brand": "Sivga",
   "model": "P-II",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "32Ω ±15%",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 112.9,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.sivgaaudio.com/product_d?id=1",
   "page": "https://thephonepath.com/headphones/sivga-p-ii/"
  },
  {
   "brand": "Sivga",
   "model": "SV021 Robin",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "32 Ohm +/-15%",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.9,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "quoted with tolerance: 105dB +/- 3dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.sivgaaudio.com/product_d?id=11",
   "page": "https://thephonepath.com/headphones/sivga-sv021-robin/"
  },
  {
   "brand": "Softears",
   "model": "RSV",
   "type": "iem",
   "impedance_ohm": 8,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.398,
   "published_value": 125,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://softears.store/products/softears-rsv",
   "page": "https://thephonepath.com/headphones/softears-rsv/"
  },
  {
   "brand": "Softears",
   "model": "Studio4",
   "type": "iem",
   "impedance_ohm": 12,
   "published_impedance": "12Ω@1kHz",
   "sensitivity_db_mw": 103.8,
   "sensitivity_db_v": 123.0,
   "power_mw_at_100db": 0.417,
   "published_value": 123,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://softears.store/products/softears-studio4",
   "page": "https://thephonepath.com/headphones/softears-studio4/"
  },
  {
   "brand": "Softears",
   "model": "Twilight",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 123.0,
   "power_mw_at_100db": 0.316,
   "published_value": 123,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://softears.store/products/softears-twilight",
   "page": "https://thephonepath.com/headphones/softears-twilight/"
  },
  {
   "brand": "Softears",
   "model": "Volume",
   "type": "iem",
   "impedance_ohm": 5,
   "published_impedance": "5Ω@1kHz",
   "sensitivity_db_mw": 100.7,
   "sensitivity_db_v": 123.7,
   "power_mw_at_100db": 0.851,
   "published_value": 123.7,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://softears.store/products/softears-volume",
   "page": "https://thephonepath.com/headphones/softears-volume/"
  },
  {
   "brand": "Sony",
   "model": "IER-M7",
   "type": "iem",
   "impedance_ohm": 24,
   "published_impedance": "",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 119.2,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
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   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony-asia.com/electronics/in-ear-headphones/ier-m7/specifications",
   "page": "https://thephonepath.com/headphones/sony-ier-m7/"
  },
  {
   "brand": "Sony",
   "model": "IER-M9",
   "type": "iem",
   "impedance_ohm": 20,
   "published_impedance": "",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB / mW",
   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony-asia.com/electronics/in-ear-headphones/ier-m9/specifications",
   "page": "https://thephonepath.com/headphones/sony-ier-m9/"
  },
  {
   "brand": "Sony",
   "model": "IER-Z1R",
   "type": "iem",
   "impedance_ohm": 40,
   "published_impedance": "",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 117.0,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB/mW",
   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.co.uk/electronics/support/wired-headphones-in-ear/ier-z1r/specifications",
   "page": "https://thephonepath.com/headphones/sony-ier-z1r/"
  },
  {
   "brand": "Sony",
   "model": "MDR-1AM2",
   "type": "over-ear",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 116.0,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB / mW",
   "published_condition": "not stated",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.co.uk/electronics/support/wired-headphones-headband/mdr-1am2/specifications",
   "page": "https://thephonepath.com/headphones/sony-mdr-1am2/"
  },
  {
   "brand": "Sony",
   "model": "MDR-7506",
   "type": "over-ear",
   "impedance_ohm": 63,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB/mW",
   "published_condition": "not stated in the table",
   "basis": "published-per-mW",
   "source_url": "https://pro.sony/s3/cms-static-content/brochures/MDR-7500_2011.pdf",
   "page": "https://thephonepath.com/headphones/sony-mdr-7506/"
  },
  {
   "brand": "Sony",
   "model": "MDR-CD900ST",
   "type": "over-ear",
   "impedance_ohm": 63,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB/mW",
   "published_condition": "not stated",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.jp/headphone/products/MDR-CD900ST/",
   "page": "https://thephonepath.com/headphones/sony-mdr-cd900st/"
  },
  {
   "brand": "Sony",
   "model": "MDR-M1",
   "type": "over-ear",
   "impedance_ohm": 50,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 115.0,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB/mW",
   "published_condition": "impedance stated '50 Ohm at 1kHz'; sensitivity printed without an explicit frequency",
   "basis": "published-per-mW",
   "source_url": "https://pro.sony/en_EG/pdf/products/headphones/mdr-m1",
   "page": "https://thephonepath.com/headphones/sony-mdr-m1/"
  },
  {
   "brand": "Sony",
   "model": "MDR-MV1",
   "type": "over-ear",
   "impedance_ohm": 24,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 116.2,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.co.uk/electronics/support/wired-headphones-headband/mdr-mv1/specifications",
   "page": "https://thephonepath.com/headphones/sony-mdr-mv1/"
  },
  {
   "brand": "Sony",
   "model": "MDR-Z1R",
   "type": "over-ear",
   "impedance_ohm": 64,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 111.9,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.co.uk/electronics/support/wired-headphones-headband/mdr-z1r/specifications",
   "page": "https://thephonepath.com/headphones/sony-mdr-z1r/"
  },
  {
   "brand": "Sony",
   "model": "MDR-Z7M2",
   "type": "over-ear",
   "impedance_ohm": 56,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 110.5,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB / mW",
   "published_condition": "impedance quoted at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://www.sony.co.uk/electronics/support/wired-headphones-headband/mdr-z7m2/specifications",
   "page": "https://thephonepath.com/headphones/sony-mdr-z7m2/"
  },
  {
   "brand": "Sony",
   "model": "WH-1000XM5",
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   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB/mW",
   "published_condition": "when connecting via the headphone cable with the headset turned off (passive); 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://helpguide.sony.net/mdr/wh1000xm5/v1/en/contents/TP1000541014.html",
   "page": "https://thephonepath.com/headphones/sony-wh-1000xm5/"
  },
  {
   "brand": "Sony",
   "model": "WH-1000XM6",
   "type": "over-ear",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB/mW",
   "published_condition": "when connecting via the headphone cable with the headset turned off (passive); 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://helpguide.sony.net/mdr/2984/v1/en/contents/TP1001863304.html",
   "page": "https://thephonepath.com/headphones/sony-wh-1000xm6/"
  },
  {
   "brand": "Spirit Torino",
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   "impedance_ohm": 64,
   "published_impedance": "",
   "sensitivity_db_mw": 90.0,
   "sensitivity_db_v": 101.9,
   "power_mw_at_100db": 10.0,
   "published_value": 90,
   "published_unit": "",
   "published_condition": "no unit and no condition stated — the page prints only \"SENSITIVITY: 90 Db\"",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.spirittorino.com/products/valkyria-titanium",
   "page": "https://thephonepath.com/headphones/spirit-torino-valkyria-titanium/"
  },
  {
   "brand": "Status Audio",
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   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 116.9,
   "power_mw_at_100db": 0.631,
   "published_value": null,
   "published_unit": "",
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   "source_url": "https://statusaudio.com/",
   "page": "https://thephonepath.com/headphones/status-audio-cb-1/"
  },
  {
   "brand": "STAX",
   "model": "SR-007A",
   "type": "electrostatic",
   "impedance_ohm": 170000,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 100,
   "published_unit": "dB / 100 V r.m.s. at f = 1 KHz (per-VOLTAGE, not per milliwatt)",
   "published_condition": "100 V r.m.s., 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://staxheadphones.com/products/sr-007a-electrostatic-earspeaker",
   "page": "https://thephonepath.com/headphones/stax-sr-007a/"
  },
  {
   "brand": "STAX",
   "model": "SR-007MK2",
   "type": "electrostatic",
   "impedance_ohm": 170000,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 100,
   "published_unit": "dB / 100V r.m.s. 1 kHz (per-VOLTAGE, not per milliwatt)",
   "published_condition": "100 V r.m.s., 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://staxheadphones.com/collections/earspeakers/products/sr-007mk2",
   "page": "https://thephonepath.com/headphones/stax-sr-007mk2/"
  },
  {
   "brand": "STAX",
   "model": "SR-009",
   "type": "electrostatic",
   "impedance_ohm": 145000,
   "published_impedance": "",
   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 101,
   "published_unit": "dB / input 100Vr.m.s. / 1kHz",
   "published_condition": "100 Vrms input at 1 kHz — a voltage reference, not a milliwatt one",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://stax-international.com/products/sr-009s/",
   "page": "https://thephonepath.com/headphones/stax-sr-009/"
  },
  {
   "brand": "STAX",
   "model": "SR-009S",
   "type": "electrostatic",
   "impedance_ohm": 145000,
   "published_impedance": "",
   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 101,
   "published_unit": "dB / input 100Vr.m.s. / 1kHz (per-VOLTAGE, not per milliwatt)",
   "published_condition": "100 V r.m.s. input, 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://stax-international.com/products/sr-009s/",
   "page": "https://thephonepath.com/headphones/stax-sr-009s/"
  },
  {
   "brand": "STAX",
   "model": "SR-L500 MKII",
   "type": "electrostatic",
   "impedance_ohm": 145000,
   "published_impedance": "",
   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 101,
   "published_unit": "dB / input 100Vr.m.s. / 1kHz (per-VOLTAGE, not per milliwatt)",
   "published_condition": "100 V r.m.s. input, 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://stax-international.com/products/sr-l500-mk2/",
   "page": "https://thephonepath.com/headphones/stax-sr-l500-mkii/"
  },
  {
   "brand": "STAX",
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   "type": "electrostatic",
   "impedance_ohm": 145000,
   "published_impedance": "",
   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": 101,
   "published_unit": "dB / input 100Vr.m.s. / 1kHz (per-VOLTAGE, not per milliwatt)",
   "published_condition": "100 V r.m.s. input, 1 kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://stax-international.com/products/sr-l700mk2/",
   "page": "https://thephonepath.com/headphones/stax-sr-l700-mkii/"
  },
  {
   "brand": "Superlux",
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   "impedance_ohm": 56,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 110.5,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB SPL (1 W)",
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   "source_url": "https://images.thomann.de/pics/atg/atgdata/document/specs/240342_en_online.pdf",
   "page": "https://thephonepath.com/headphones/superlux-hd-668b/"
  },
  {
   "brand": "Superlux",
   "model": "HD 681 EVO",
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   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 112.9,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB SPL (1 mW)",
   "published_condition": "1 mW",
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   "source_url": "https://images.thomann.de/pics/atg/atgdata/document/specs/297902_297906_en_online.pdf",
   "page": "https://thephonepath.com/headphones/superlux-hd-681-evo/"
  },
  {
   "brand": "Symphonium",
   "model": "Crimson",
   "type": "iem",
   "impedance_ohm": 6.05,
   "published_impedance": "6.05 Ohms @ 1 kHz",
   "sensitivity_db_mw": 83.8,
   "sensitivity_db_v": 106.0,
   "power_mw_at_100db": 41.687,
   "published_value": 106,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/crimson",
   "page": "https://thephonepath.com/headphones/symphonium-crimson/"
  },
  {
   "brand": "Symphonium",
   "model": "Giant",
   "type": "iem",
   "impedance_ohm": 7.0,
   "published_impedance": "7.0 Ohms @ 1 kHz",
   "sensitivity_db_mw": 88.5,
   "sensitivity_db_v": 110.0,
   "power_mw_at_100db": 14.125,
   "published_value": 110,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/giant",
   "page": "https://thephonepath.com/headphones/symphonium-giant/"
  },
  {
   "brand": "Symphonium",
   "model": "Helios",
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   "impedance_ohm": 8.5,
   "published_impedance": "8.50 Ohms @ 1 kHz",
   "sensitivity_db_mw": 83.3,
   "sensitivity_db_v": 104.0,
   "power_mw_at_100db": 46.774,
   "published_value": 104,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/helios",
   "page": "https://thephonepath.com/headphones/symphonium-helios/"
  },
  {
   "brand": "Symphonium",
   "model": "Meteor",
   "type": "iem",
   "impedance_ohm": 9.7,
   "published_impedance": "",
   "sensitivity_db_mw": 90.9,
   "sensitivity_db_v": 111.0,
   "power_mw_at_100db": 8.128,
   "published_value": 111,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/meteor",
   "page": "https://thephonepath.com/headphones/symphonium-meteor/"
  },
  {
   "brand": "Symphonium",
   "model": "Titan",
   "type": "iem",
   "impedance_ohm": 3.0,
   "published_impedance": "3.00 Ohms @ 1 kHz",
   "sensitivity_db_mw": 79.8,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 104.713,
   "published_value": 105,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/titan",
   "page": "https://thephonepath.com/headphones/symphonium-titan/"
  },
  {
   "brand": "Symphonium",
   "model": "Triton",
   "type": "iem",
   "impedance_ohm": 8.3,
   "published_impedance": "8.30 Ohms @ 1 kHz",
   "sensitivity_db_mw": 86.2,
   "sensitivity_db_v": 107.0,
   "power_mw_at_100db": 23.988,
   "published_value": 107,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/triton",
   "page": "https://thephonepath.com/headphones/symphonium-triton/"
  },
  {
   "brand": "Symphonium",
   "model": "Zenith",
   "type": "iem",
   "impedance_ohm": 6.1,
   "published_impedance": "6.10 Ohms @ 1 kHz",
   "sensitivity_db_mw": 85.9,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 25.704,
   "published_value": 108,
   "published_unit": "dB/Vrms",
   "published_condition": "@ 1 kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://www.symphoniumaudio.com/products/zenith",
   "page": "https://thephonepath.com/headphones/symphonium-zenith/"
  },
  {
   "brand": "Takstar",
   "model": "Pro 82",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 110.9,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "at 1kHz, tolerance +/-3 dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://takstarmall.com/products/takstar-headphone-pro-82",
   "page": "https://thephonepath.com/headphones/takstar-pro-82/"
  },
  {
   "brand": "Tanchjim",
   "model": "EA FORCE",
   "type": "iem",
   "impedance_ohm": 17,
   "published_impedance": "阻抗：17Ω士10%",
   "sensitivity_db_mw": 120.0,
   "sensitivity_db_v": 137.7,
   "power_mw_at_100db": 0.01,
   "published_value": 120,
   "published_unit": "dB/rmS",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tanchjim.com/products/earphones/iem/ea-force/",
   "page": "https://thephonepath.com/headphones/tanchjim-ea-force/"
  },
  {
   "brand": "Tanchjim",
   "model": "FOLA",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "阻抗：16Ω士15%",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 126.0,
   "power_mw_at_100db": 0.158,
   "published_value": 126,
   "published_unit": "dB/VrmS",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://tanchjim.com/products/earphones/iem/fola/",
   "page": "https://thephonepath.com/headphones/tanchjim-fola/"
  },
  {
   "brand": "Tanchjim",
   "model": "NORA",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "16Ω士5%",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 125.0,
   "power_mw_at_100db": 0.2,
   "published_value": 125,
   "published_unit": "dB/VrmS",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://tanchjim.com/products/earphones/iem/nora/",
   "page": "https://thephonepath.com/headphones/tanchjim-nora/"
  },
  {
   "brand": "Tanchjim",
   "model": "OLA II",
   "type": "iem",
   "impedance_ohm": 30,
   "published_impedance": "30Ω士10%",
   "sensitivity_db_mw": 105.8,
   "sensitivity_db_v": 121.0,
   "power_mw_at_100db": 0.263,
   "published_value": 121,
   "published_unit": "dB/VrmS",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://tanchjim.com/products/earphones/iem/ola-ii/",
   "page": "https://thephonepath.com/headphones/tanchjim-ola-ii/"
  },
  {
   "brand": "Tanchjim",
   "model": "ORIGIN (Lost Manor)",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "阻抗：16Ω土5%",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 124.0,
   "power_mw_at_100db": 0.251,
   "published_value": 124,
   "published_unit": "dB/VrmS",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://tanchjim.com/products/earphones/iem/lost-manor/",
   "page": "https://thephonepath.com/headphones/tanchjim-origin-lost-manor/"
  },
  {
   "brand": "Tanchjim",
   "model": "SODA",
   "type": "iem",
   "impedance_ohm": 15.5,
   "published_impedance": "阻抗：15.5Ω士15%",
   "sensitivity_db_mw": 101.9,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.646,
   "published_value": 120,
   "published_unit": "dB/VrmS",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://tanchjim.com/products/earphones/iem/soda/",
   "page": "https://thephonepath.com/headphones/tanchjim-soda/"
  },
  {
   "brand": "Tangzu",
   "model": "Fudu Verse 1",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 124.0,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz, ±≤1dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tangzu.net/products/tangzu-fudu-verse-1-hifi-in-ear-headphones",
   "page": "https://thephonepath.com/headphones/tangzu-fudu-verse-1/"
  },
  {
   "brand": "Tangzu",
   "model": "Li Zhi",
   "type": "iem",
   "impedance_ohm": 18,
   "published_impedance": "18 Ω ±15% @ 1000Hz",
   "sensitivity_db_mw": 107.5,
   "sensitivity_db_v": 124.9,
   "power_mw_at_100db": 0.178,
   "published_value": 107.5,
   "published_unit": "",
   "published_condition": "± 3dB @ 1000Hz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tangzu.net/products/tangzu-li-zhi-flagship-diamond-diaphragm-single-dynamic-driver-in-ear-monitor",
   "page": "https://thephonepath.com/headphones/tangzu-li-zhi/"
  },
  {
   "brand": "Tangzu",
   "model": "OX Demon King",
   "type": "over-ear",
   "impedance_ohm": 25,
   "published_impedance": "25Ω ± 15% @ 1000Hz",
   "sensitivity_db_mw": 92.0,
   "sensitivity_db_v": 108.0,
   "power_mw_at_100db": 6.31,
   "published_value": 92,
   "published_unit": "dB/mW",
   "published_condition": "± 3dB @ 1000Hz",
   "basis": "published-per-mW",
   "source_url": "https://tangzu.net/products/tangzu-ox-demon-king-open-back-planar-magnetic-wired-over-ear-headphones",
   "page": "https://thephonepath.com/headphones/tangzu-ox-demon-king/"
  },
  {
   "brand": "Tangzu",
   "model": "The King Wukong",
   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "22Ω ±20%",
   "sensitivity_db_mw": 112.0,
   "sensitivity_db_v": 128.6,
   "power_mw_at_100db": 0.063,
   "published_value": 112,
   "published_unit": "",
   "published_condition": "1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tangzu.net/products/tangzu-the-king-wukong-1dd-6ba-4est-in-ear-monitors",
   "page": "https://thephonepath.com/headphones/tangzu-the-king-wukong/"
  },
  {
   "brand": "Tangzu",
   "model": "Tianpeng",
   "type": "iem",
   "impedance_ohm": 9.8,
   "published_impedance": "9.8Ω 1kHz±20%",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 124.1,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "",
   "published_condition": "1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tangzu.net/products/pre-sale-tangzu-tianpeng-1-dynamic-6-moving-iron-1-bone-conduction-in-ear-hifi-headphones",
   "page": "https://thephonepath.com/headphones/tangzu-tianpeng/"
  },
  {
   "brand": "Tangzu",
   "model": "Xuan Nv",
   "type": "iem",
   "impedance_ohm": 8.5,
   "published_impedance": "8.5Ω 1kHz±20%",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 118.7,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "",
   "published_condition": "1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://tangzu.net/products/tangzu-xuan-nv-in-ear-hifi-earphones",
   "page": "https://thephonepath.com/headphones/tangzu-xuan-nv/"
  },
  {
   "brand": "Tangzu",
   "model": "Zetian Wu",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 118.0,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://conceptkart.com/products/tangzu-zetian-wu-planar-wired-iem",
   "page": "https://thephonepath.com/headphones/tangzu-zetian-wu/"
  },
  {
   "brand": "Technics",
   "model": "EAH-A800",
   "type": "over-ear",
   "impedance_ohm": 34,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.7,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB/mW",
   "published_condition": "@1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://us.technics.com/products/technics-noise-cancelling-over-ear-headphones-eah-a800",
   "page": "https://thephonepath.com/headphones/technics-eah-a800/"
  },
  {
   "brand": "Thieaudio",
   "model": "Ghost",
   "type": "over-ear",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 91.0,
   "sensitivity_db_v": 103.2,
   "power_mw_at_100db": 7.943,
   "published_value": 91,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-ghost",
   "page": "https://thephonepath.com/headphones/thieaudio-ghost/"
  },
  {
   "brand": "Thieaudio",
   "model": "Hype 10",
   "type": "iem",
   "impedance_ohm": 18,
   "published_impedance": "",
   "sensitivity_db_mw": 87.6,
   "sensitivity_db_v": 105.0,
   "power_mw_at_100db": 17.378,
   "published_value": 105,
   "published_unit": "dB/Vrms",
   "published_condition": "",
   "basis": "converted-from-per-volt",
   "source_url": "https://hangout.audio/products/thieaudio-hype-10",
   "page": "https://thephonepath.com/headphones/thieaudio-hype-10/"
  },
  {
   "brand": "Thieaudio",
   "model": "Hype 2",
   "type": "iem",
   "impedance_ohm": 16,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 122.0,
   "power_mw_at_100db": 0.398,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.linsoul.com/products/thieaudio-hype-2",
   "page": "https://thephonepath.com/headphones/thieaudio-hype-2/"
  },
  {
   "brand": "Thieaudio",
   "model": "Hype 4",
   "type": "iem",
   "impedance_ohm": 17,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 122.7,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "(±1dB) @1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.linsoul.com/products/thieaudio-hype-4",
   "page": "https://thephonepath.com/headphones/thieaudio-hype-4/"
  },
  {
   "brand": "Thieaudio",
   "model": "Hype 4 MKII",
   "type": "iem",
   "impedance_ohm": 18,
   "published_impedance": "18Ω (±1Ω)",
   "sensitivity_db_mw": 101.0,
   "sensitivity_db_v": 118.4,
   "power_mw_at_100db": 0.794,
   "published_value": 101,
   "published_unit": "dB",
   "published_condition": "(±1dB) @ 1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-hype-4-mkii",
   "page": "https://thephonepath.com/headphones/thieaudio-hype-4-mkii/"
  },
  {
   "brand": "Thieaudio",
   "model": "Monarch MK3",
   "type": "iem",
   "impedance_ohm": 20,
   "published_impedance": "",
   "sensitivity_db_mw": 99.0,
   "sensitivity_db_v": 116.0,
   "power_mw_at_100db": 1.259,
   "published_value": 99,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@ 1kHz (+/- 1dB)",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-monarch-mkiii",
   "page": "https://thephonepath.com/headphones/thieaudio-monarch-mk3/"
  },
  {
   "brand": "Thieaudio",
   "model": "Monarch MKII",
   "type": "iem",
   "impedance_ohm": 36,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 122.4,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "not stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-monarch-mkii",
   "page": "https://thephonepath.com/headphones/thieaudio-monarch-mkii/"
  },
  {
   "brand": "Thieaudio",
   "model": "Monarch MKIV",
   "type": "iem",
   "impedance_ohm": 10,
   "published_impedance": "10/9 ohms (±1 ohm) @1kHz",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB",
   "published_condition": "±1dB @1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-monarch-mkiv",
   "page": "https://thephonepath.com/headphones/thieaudio-monarch-mkiv/"
  },
  {
   "brand": "Thieaudio",
   "model": "Oracle MKII",
   "type": "iem",
   "impedance_ohm": 15,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 122.2,
   "power_mw_at_100db": 0.398,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-oracle-mkii",
   "page": "https://thephonepath.com/headphones/thieaudio-oracle-mkii/"
  },
  {
   "brand": "Thieaudio",
   "model": "Origin",
   "type": "iem",
   "impedance_ohm": 9,
   "published_impedance": "9Ω @ 1kHz",
   "sensitivity_db_mw": 102.0,
   "sensitivity_db_v": 122.5,
   "power_mw_at_100db": 0.631,
   "published_value": 102,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz, ±1dB",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-origin",
   "page": "https://thephonepath.com/headphones/thieaudio-origin/"
  },
  {
   "brand": "Thieaudio",
   "model": "Phantom",
   "type": "over-ear",
   "impedance_ohm": 47,
   "published_impedance": "",
   "sensitivity_db_mw": 93.0,
   "sensitivity_db_v": 106.3,
   "power_mw_at_100db": 5.012,
   "published_value": 93,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "±3 dB, no frequency or reference stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.linsoul.com/blogs/technical-data/thieaudio-phantom",
   "page": "https://thephonepath.com/headphones/thieaudio-phantom/"
  },
  {
   "brand": "Thieaudio",
   "model": "Prestige LTD",
   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 99.0,
   "sensitivity_db_v": 115.6,
   "power_mw_at_100db": 1.259,
   "published_value": 99,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.thieaudio.com/products/thieaudio-prestige-ltd",
   "page": "https://thephonepath.com/headphones/thieaudio-prestige-ltd/"
  },
  {
   "brand": "Tin HiFi",
   "model": "C5",
   "type": "iem",
   "impedance_ohm": 9,
   "published_impedance": "9Ω ±15%",
   "sensitivity_db_mw": 98.5,
   "sensitivity_db_v": 119.0,
   "power_mw_at_100db": 1.413,
   "published_value": 101,
   "published_unit": "dB @1kHz 0.126V",
   "published_condition": "@1kHz, 0.126V drive; ±3dB",
   "basis": "converted-from-stated-voltage",
   "source_url": "https://tinhifi.com/products/tinhifi-c5",
   "page": "https://thephonepath.com/headphones/tin-hifi-c5/"
  },
  {
   "brand": "Tin HiFi",
   "model": "T2 Plus",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 118.9,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://www.tinhifi.com/products/tinhifi-t2-plus",
   "page": "https://thephonepath.com/headphones/tin-hifi-t2-plus/"
  },
  {
   "brand": "Tin HiFi",
   "model": "T3 Plus",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32Ω±15%",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.9,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB @1kHz 0.179V",
   "published_condition": "@1kHz, 0.179V drive; ±3dB",
   "basis": "converted-from-stated-voltage",
   "source_url": "https://www.tinhifi.com/products/tinhifi-t3-plus",
   "page": "https://thephonepath.com/headphones/tin-hifi-t3-plus/"
  },
  {
   "brand": "Tin HiFi",
   "model": "T4 Plus",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "32Ω ±15%",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 120.9,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB @1kHz 0.179V",
   "published_condition": "@1kHz, 0.179V drive; ±3dB",
   "basis": "converted-from-stated-voltage",
   "source_url": "https://tinhifi.com/products/tinhifi-t4-plus",
   "page": "https://thephonepath.com/headphones/tin-hifi-t4-plus/"
  },
  {
   "brand": "Tripowin",
   "model": "Mele",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 110.9,
   "power_mw_at_100db": 2.512,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://www.linsoul.com/products/tripowin-x-hbb-mele",
   "page": "https://thephonepath.com/headphones/tripowin-mele/"
  },
  {
   "brand": "TRN",
   "model": "Azure Dragon",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 108.0,
   "sensitivity_db_v": 122.9,
   "power_mw_at_100db": 0.158,
   "published_value": 108,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://trn-audio.com/trn-azure-dragon.html",
   "page": "https://thephonepath.com/headphones/trn-azure-dragon/"
  },
  {
   "brand": "TRN",
   "model": "Conch",
   "type": "iem",
   "impedance_ohm": 30,
   "published_impedance": "",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 129.2,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://trn-audio.com/trn-conch.html",
   "page": "https://thephonepath.com/headphones/trn-conch/"
  },
  {
   "brand": "TRN",
   "model": "Kirin",
   "type": "iem",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 120.9,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://trn-audio.com/trn-kirin.html",
   "page": "https://thephonepath.com/headphones/trn-kirin/"
  },
  {
   "brand": "TRN",
   "model": "MT1",
   "type": "iem",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 106.0,
   "sensitivity_db_v": 122.6,
   "power_mw_at_100db": 0.251,
   "published_value": 106,
   "published_unit": "dB (no reference unit stated)",
   "published_condition": "not stated",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://trn-audio.com/trn-mt1.html",
   "page": "https://thephonepath.com/headphones/trn-mt1/"
  },
  {
   "brand": "TRN",
   "model": "MT4 Pro",
   "type": "iem",
   "impedance_ohm": 40,
   "published_impedance": "",
   "sensitivity_db_mw": 113.0,
   "sensitivity_db_v": 127.0,
   "power_mw_at_100db": 0.05,
   "published_value": 113,
   "published_unit": "",
   "published_condition": "",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://trn-audio.com/trn-mt4-pro.html",
   "page": "https://thephonepath.com/headphones/trn-mt4-pro/"
  },
  {
   "brand": "Truthear",
   "model": "Hexa",
   "type": "iem",
   "impedance_ohm": 20.5,
   "published_impedance": "20.5Ω±15% (@1kHz)",
   "sensitivity_db_mw": 103.1,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.49,
   "published_value": 120,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/hexa",
   "page": "https://thephonepath.com/headphones/truthear-hexa/"
  },
  {
   "brand": "Truthear",
   "model": "Hola",
   "type": "iem",
   "impedance_ohm": 28,
   "published_impedance": "28Ω±15%@1kHz",
   "sensitivity_db_mw": 104.5,
   "sensitivity_db_v": 120.0,
   "power_mw_at_100db": 0.355,
   "published_value": 120,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/hola",
   "page": "https://thephonepath.com/headphones/truthear-hola/"
  },
  {
   "brand": "Truthear",
   "model": "Nova",
   "type": "iem",
   "impedance_ohm": 15,
   "published_impedance": "",
   "sensitivity_db_mw": 104.8,
   "sensitivity_db_v": 123.0,
   "power_mw_at_100db": 0.331,
   "published_value": 123,
   "published_unit": "dB/Vrms",
   "published_condition": "@1KHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/nova",
   "page": "https://thephonepath.com/headphones/truthear-nova/"
  },
  {
   "brand": "Truthear",
   "model": "PURE",
   "type": "iem",
   "impedance_ohm": 13.8,
   "published_impedance": "13.8Ω±15% @1kHz",
   "sensitivity_db_mw": 105.4,
   "sensitivity_db_v": 124.0,
   "power_mw_at_100db": 0.288,
   "published_value": 124,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/pure",
   "page": "https://thephonepath.com/headphones/truthear-pure/"
  },
  {
   "brand": "Truthear",
   "model": "Zero",
   "type": "iem",
   "impedance_ohm": 10,
   "published_impedance": "10Ω±15% (@1kHz)",
   "sensitivity_db_mw": 97.5,
   "sensitivity_db_v": 117.5,
   "power_mw_at_100db": 1.778,
   "published_value": 117.5,
   "published_unit": "dB/Vrms",
   "published_condition": "@1kHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/zero",
   "page": "https://thephonepath.com/headphones/truthear-zero/"
  },
  {
   "brand": "Truthear",
   "model": "Zero:2",
   "type": "iem",
   "impedance_ohm": 5.8,
   "published_impedance": "5.8Ω±15% @1KHz",
   "sensitivity_db_mw": 97.1,
   "sensitivity_db_v": 119.5,
   "power_mw_at_100db": 1.95,
   "published_value": 119.5,
   "published_unit": "dB/Vrms",
   "published_condition": "@1KHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/zero-blue2",
   "page": "https://thephonepath.com/headphones/truthear-zero-2/"
  },
  {
   "brand": "Truthear",
   "model": "ZERO:BLUE2",
   "type": "iem",
   "impedance_ohm": 5.8,
   "published_impedance": "5.8Ω±15% @1KHz",
   "sensitivity_db_mw": 97.1,
   "sensitivity_db_v": 119.5,
   "power_mw_at_100db": 1.95,
   "published_value": 119.5,
   "published_unit": "dB/Vrms",
   "published_condition": "@1KHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/zero-blue2",
   "page": "https://thephonepath.com/headphones/truthear-zero-blue2/"
  },
  {
   "brand": "Truthear",
   "model": "Zero:RED",
   "type": "iem",
   "impedance_ohm": 17.5,
   "published_impedance": "17.5Ω±15% @1KHz",
   "sensitivity_db_mw": 99.9,
   "sensitivity_db_v": 117.5,
   "power_mw_at_100db": 1.023,
   "published_value": 117.5,
   "published_unit": "dB/Vrms",
   "published_condition": "@1KHz",
   "basis": "converted-from-per-volt",
   "source_url": "https://truthear.com/products/zero-red",
   "page": "https://thephonepath.com/headphones/truthear-zero-red/"
  },
  {
   "brand": "Unique Melody",
   "model": "Maven III",
   "type": "iem",
   "impedance_ohm": 8.8,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 125.6,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://uniquemelody.org/products/maven-iii",
   "page": "https://thephonepath.com/headphones/unique-melody-maven-iii/"
  },
  {
   "brand": "Unique Melody",
   "model": "Multiverse Mentor",
   "type": "over-ear",
   "impedance_ohm": 22,
   "published_impedance": "",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 130.6,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
   "published_unit": "dB",
   "published_condition": "@1KHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://uniquemelody.org/products/the-multiverse-mentor",
   "page": "https://thephonepath.com/headphones/unique-melody-multiverse-mentor/"
  },
  {
   "brand": "V-MODA",
   "model": "Crossfade M-100 Master",
   "type": "over-ear",
   "impedance_ohm": 32,
   "published_impedance": "",
   "sensitivity_db_mw": 105.0,
   "sensitivity_db_v": 119.9,
   "power_mw_at_100db": 0.316,
   "published_value": 105,
   "published_unit": "dB",
   "published_condition": "@1kHz 1mW",
   "basis": "published-per-mW",
   "source_url": "https://www.roland.com/RolandComSite/media/global/release/pdf/2019/20190710_1_V-MODA_M-100_Master.pdf",
   "page": "https://thephonepath.com/headphones/v-moda-crossfade-m-100-master/"
  },
  {
   "brand": "Verum Audio",
   "model": "Verum 1",
   "type": "over-ear",
   "impedance_ohm": 8,
   "published_impedance": "",
   "sensitivity_db_mw": 107.0,
   "sensitivity_db_v": 128.0,
   "power_mw_at_100db": 0.2,
   "published_value": 107,
   "published_unit": "dB/mW",
   "published_condition": "",
   "basis": "published-per-mW",
   "source_url": "https://www.verum-audio.com/product-page/verum-1-carbon",
   "page": "https://thephonepath.com/headphones/verum-audio-verum-1/"
  },
  {
   "brand": "Verum Audio",
   "model": "Verum 2",
   "type": "over-ear",
   "impedance_ohm": 8,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 117.0,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "none stated (bare dB/mW, no frequency or reference point given)",
   "basis": "published-per-mW",
   "source_url": "https://www.verum-audio.com/product-page/verum-2-pearl",
   "page": "https://thephonepath.com/headphones/verum-audio-verum-2/"
  },
  {
   "brand": "Vision Ears",
   "model": "EXT MK II",
   "type": "over-ear",
   "impedance_ohm": 10,
   "published_impedance": "Impedance: 10 Ω @ 1KHz",
   "sensitivity_db_mw": 108.5,
   "sensitivity_db_v": 128.5,
   "power_mw_at_100db": 0.141,
   "published_value": 108.5,
   "published_unit": "dB SPL",
   "published_condition": "Printed verbatim as 'Sensitivity 1mW: 108.5 dB SPL @ 1KHz (100mV)'",
   "basis": "published-per-mW",
   "source_url": "https://vision-ears.de/en/products/premium-line/ext-mk-ii",
   "page": "https://thephonepath.com/headphones/vision-ears-ext-mk-ii/"
  },
  {
   "brand": "Vision Ears",
   "model": "Phönix Final Edition",
   "type": "over-ear",
   "impedance_ohm": 10,
   "published_impedance": "10 Ohm (at 1 kHz)",
   "sensitivity_db_mw": 114.6,
   "sensitivity_db_v": 134.6,
   "power_mw_at_100db": 0.035,
   "published_value": 114.6,
   "published_unit": "dB SPL",
   "published_condition": "@1KHz with 100 mV input (printed verbatim as '114.6 dB SPL@1KHz with 100 mV input')",
   "basis": "converted-from-stated-voltage",
   "source_url": "https://vision-ears.de/en/products/premium-line/phoenix-final-edition",
   "page": "https://thephonepath.com/headphones/vision-ears-phonix-final-edition/"
  },
  {
   "brand": "Warwick Acoustics",
   "model": "Aperio",
   "type": "electrostatic",
   "impedance_ohm": 200,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://warwickacoustics.com/headphones/collection/aperio/",
   "page": "https://thephonepath.com/headphones/warwick-acoustics-aperio/"
  },
  {
   "brand": "Warwick Acoustics",
   "model": "Sonoma M1",
   "type": "electrostatic",
   "impedance_ohm": 200,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": null,
   "power_mw_at_100db": null,
   "published_value": null,
   "published_unit": "",
   "published_condition": "",
   "basis": "not-published-by-maker",
   "source_url": "https://warwickacoustics.com/headphones/collection/sonoma/",
   "page": "https://thephonepath.com/headphones/warwick-acoustics-sonoma-m1/"
  },
  {
   "brand": "Westone",
   "model": "MACH 10",
   "type": "over-ear",
   "impedance_ohm": 80,
   "published_impedance": "80 Ohms @1kHz",
   "sensitivity_db_mw": 103.0,
   "sensitivity_db_v": 114.0,
   "power_mw_at_100db": 0.501,
   "published_value": 103,
   "published_unit": "dB",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://westoneaudio.com/products/mach-10",
   "page": "https://thephonepath.com/headphones/westone-mach-10/"
  },
  {
   "brand": "Westone",
   "model": "MACH 20",
   "type": "over-ear",
   "impedance_ohm": 96,
   "published_impedance": "96 Ohms @1kHz",
   "sensitivity_db_mw": 110.0,
   "sensitivity_db_v": 120.2,
   "power_mw_at_100db": 0.1,
   "published_value": 110,
   "published_unit": "dB",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://westoneaudio.com/products/mach-20",
   "page": "https://thephonepath.com/headphones/westone-mach-20/"
  },
  {
   "brand": "Westone",
   "model": "MACH 60",
   "type": "over-ear",
   "impedance_ohm": 35,
   "published_impedance": "35 Ohms @1kHz",
   "sensitivity_db_mw": 100.0,
   "sensitivity_db_v": 114.6,
   "power_mw_at_100db": 1.0,
   "published_value": 100,
   "published_unit": "dB",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://westoneaudio.com/products/mach-60",
   "page": "https://thephonepath.com/headphones/westone-mach-60/"
  },
  {
   "brand": "Westone",
   "model": "MACH 80",
   "type": "over-ear",
   "impedance_ohm": 66,
   "published_impedance": "66 Ohms @1kHz",
   "sensitivity_db_mw": 104.0,
   "sensitivity_db_v": 115.8,
   "power_mw_at_100db": 0.398,
   "published_value": 104,
   "published_unit": "dB",
   "published_condition": "@1kHz",
   "basis": "unit-not-stated-by-maker",
   "source_url": "https://westoneaudio.com/products/mach-80",
   "page": "https://thephonepath.com/headphones/westone-mach-80/"
  },
  {
   "brand": "Westone",
   "model": "Pro X10",
   "type": "over-ear",
   "impedance_ohm": 19,
   "published_impedance": "",
   "sensitivity_db_mw": 114.0,
   "sensitivity_db_v": 131.2,
   "power_mw_at_100db": 0.04,
   "published_value": 114,
   "published_unit": "dB @ 1mW",
   "published_condition": "@ 1mW",
   "basis": "published-per-mW",
   "source_url": "https://westoneaudio.com/wp-content/uploads/2021/07/New-Pro-X10-Line-Up-Spec-Sheets.pdf",
   "page": "https://thephonepath.com/headphones/westone-pro-x10/"
  },
  {
   "brand": "Yamaha",
   "model": "YH-5000SE",
   "type": "over-ear",
   "impedance_ohm": 34,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 112.7,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB/mW",
   "published_condition": "at 1 kHz",
   "basis": "published-per-mW",
   "source_url": "https://usa.yamaha.com/products/audio_visual/headphones/yh-5000se/specs.html",
   "page": "https://thephonepath.com/headphones/yamaha-yh-5000se/"
  },
  {
   "brand": "ZMF",
   "model": "Aeolus",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 102.2,
   "power_mw_at_100db": 1.995,
   "published_value": 97,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints '~97dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/aeolus",
   "page": "https://thephonepath.com/headphones/zmf-aeolus/"
  },
  {
   "brand": "ZMF",
   "model": "Atrium",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 101.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints '~96dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/atrium",
   "page": "https://thephonepath.com/headphones/zmf-atrium/"
  },
  {
   "brand": "ZMF",
   "model": "Atrium Closed",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 101.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints '~96dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/atrium-closed",
   "page": "https://thephonepath.com/headphones/zmf-atrium-closed/"
  },
  {
   "brand": "ZMF",
   "model": "Auteur",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 101.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints a tilde, '~96dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/auteur_classic",
   "page": "https://thephonepath.com/headphones/zmf-auteur/"
  },
  {
   "brand": "ZMF",
   "model": "Auteur Black",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 96.0,
   "sensitivity_db_v": 101.2,
   "power_mw_at_100db": 2.512,
   "published_value": 96,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints a tilde, '~96dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/auteur_classic",
   "page": "https://thephonepath.com/headphones/zmf-auteur-black/"
  },
  {
   "brand": "ZMF",
   "model": "Caldera",
   "type": "over-ear",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 107.2,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints '~95dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/caldera",
   "page": "https://thephonepath.com/headphones/zmf-caldera/"
  },
  {
   "brand": "ZMF",
   "model": "Caldera Closed",
   "type": "over-ear",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 94.0,
   "sensitivity_db_v": 106.2,
   "power_mw_at_100db": 3.981,
   "published_value": 94,
   "published_unit": "dB/mW",
   "published_condition": "none stated; ZMF prints '~94dB/mW'",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/caldera-closed",
   "page": "https://thephonepath.com/headphones/zmf-caldera-closed/"
  },
  {
   "brand": "ZMF",
   "model": "Eikon",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 98.0,
   "sensitivity_db_v": 103.2,
   "power_mw_at_100db": 1.585,
   "published_value": 98,
   "published_unit": "dB/mW",
   "published_condition": "none stated (bare dB/mW)",
   "basis": "published-per-mW",
   "source_url": "https://www.zmfheadphones.com/auteur-eikon/",
   "page": "https://thephonepath.com/headphones/zmf-eikon/"
  },
  {
   "brand": "ZMF",
   "model": "Ori",
   "type": "over-ear",
   "impedance_ohm": 60,
   "published_impedance": "",
   "sensitivity_db_mw": 95.0,
   "sensitivity_db_v": 107.2,
   "power_mw_at_100db": 3.162,
   "published_value": 95,
   "published_unit": "dB/mW",
   "published_condition": "none stated (bare dB/mW)",
   "basis": "published-per-mW",
   "source_url": "https://shop.zmfheadphones.com/products/ori-3-0",
   "page": "https://thephonepath.com/headphones/zmf-ori/"
  },
  {
   "brand": "ZMF",
   "model": "Verite Closed",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 99.0,
   "sensitivity_db_v": 104.2,
   "power_mw_at_100db": 1.259,
   "published_value": 99,
   "published_unit": "dB/mW",
   "published_condition": "none stated (bare dB/mW)",
   "basis": "published-per-mW",
   "source_url": "https://www.zmfheadphones.com/verite/",
   "page": "https://thephonepath.com/headphones/zmf-verite-closed/"
  },
  {
   "brand": "ZMF",
   "model": "Verite Open",
   "type": "over-ear",
   "impedance_ohm": 300,
   "published_impedance": "",
   "sensitivity_db_mw": 97.0,
   "sensitivity_db_v": 102.2,
   "power_mw_at_100db": 1.995,
   "published_value": 97,
   "published_unit": "dB/mW",
   "published_condition": "none stated (bare dB/mW)",
   "basis": "published-per-mW",
   "source_url": "https://www.zmfheadphones.com/verite/",
   "page": "https://thephonepath.com/headphones/zmf-verite-open/"
  }
 ]
}