The FiiO FD7 ranks #600 out of 865 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Fiio
Prices on this page were last checked October 13, 2026 at 3:17 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
#600 FiiO FD7 eBay
Pros: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 1 x 12mm dynamic.
Cons: Presence sits about 4.9 dB low with a 9.2 dB dip near 10.3 kHz, so vocals and instruments lose some bite. Sub-bass is 3.5 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 64 places it in the lower part of the in-ear rankings.
| Released | Sep 2021 (5 years ago) |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.99 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 12mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 40kHz |
| Harman Preference Score | 64 (measured by crinacle, via AutoEQ) |
| Impedance | 50 ohms |
| Sensitivity | 111 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.5 dB at 30 Hz) |
| Tonal Tilt | -0.42 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -7.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.8 dB | 0.70 |
| Peak | 8,986 Hz | +6.4 dB | 1.86 |
| Peak | 82 Hz | -5.0 dB | 0.30 |
| Peak | 3,612 Hz | +4.5 dB | 3.32 |
| Peak | 787 Hz | +1.6 dB | 1.79 |
| High shelf | 10,000 Hz | +2.4 dB | 0.70 |
| Peak | 1,978 Hz | -0.9 dB | 1.55 |
| Peak | 5,358 Hz | -2.8 dB | 5.99 |
| Peak | 6,359 Hz | +1.7 dB | 6.00 |
| Peak | 2,981 Hz | +1.1 dB | 4.41 |
- Reviews, Comparisons and Sound Samples