This page does not review anything JadeAudio makes. It counts one thing: how much of what this database says about their products came out of their own documents, and how much had to be worked out or left blank.
| Product | Into 32Ω | Output impedance | Output noise |
|---|---|---|---|
| JadeAudio JA11 | 30 mW | 0.5 Ω | 1.7 µV |
Power decides whether it gets loud enough, output impedance decides whether it tilts the response of a multi-driver in-ear, and the noise figure decides whether you hear hiss with sensitive ones. All three fit on one line of a spec sheet; most of the industry prints one of them.
JadeAudio publishes none of the three for the 1 product here: no power figure at a stated load, no output impedance, no noise figure. Of the 4 power figures this site displays for them at 32, 150, 300 and 600 Ω: 3 worked out by holding output voltage steady across loads, 1 not traceable to any document of theirs.