FiiO JD10
The FiiO JD10 is an entry-level wired in-ear monitor with a 10mm polymer composite dynamic driver and a dual-cavity acoustic design. It uses a detachable 0.78mm 2-pin cable and is described as the second-generation successor to the JD1; the JD10 TC variant adds a USB Type-C connection with a built-in DSP chip and six tuning presets.
| Frequency response | 20 Hz – 40 kHz |
| Sensitivity | 105 dB/mW |
| Impedance | 32 Ω |
| Driver | 10 mm |
| Weight | 3.7 g |
As stated by the manufacturer — not community data.
Plays straight from a phone
A phone or laptop reaches full listening level. An amp is a choice, not a requirement.
| Needs, for 110 dB peaks | 0.32 V · 3.2 mW |
| Phone or laptop (≈0.70 V, 20 mW) | Enough |
| Dongle DAC/amp (≈2.0 V, 120 mW) | Enough |
Worked out from the stated 105 dB/mW and 32 Ω — not a listening test.
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