The JVC HA-FX99X-B ranks #712 out of 865 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: JVC
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.

#712 JVC HA-FX99X-B Discontinued eBay
Pros: It weighs 8.2g.
Cons: Discontinued, so it is mainly found used. A Harman score of 57 places it in the lower part of the in-ear rankings.
| Released | Oct 2016 (10 years ago) |
|---|---|
| Connection | Wired |
| Deviation From Target | 3.06 dB standard deviation |
| Driver Type | Dynamic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 40kHz |
| Harman Preference Score | 57 (measured by crinacle, via AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 103 dB/mW |
| Tonal Tilt | -1.19 (negative is warmer, positive brighter) |
| Weight | 0 lbs (8.2g) |
EQ preset to match the Harman target
Set a preamp of -6.0 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 | -1.3 dB | 0.70 |
| Peak | 6,565 Hz | +6.7 dB | 0.59 |
| Peak | 160 Hz | -4.8 dB | 0.68 |
| Peak | 4,166 Hz | -8.6 dB | 2.08 |
| Peak | 1,519 Hz | +1.1 dB | 0.18 |
| High shelf | 10,000 Hz | +2.8 dB | 0.70 |
| Peak | 1,251 Hz | -1.7 dB | 5.30 |
| Peak | 8,642 Hz | -1.2 dB | 3.00 |
| Peak | 921 Hz | +1.6 dB | 5.93 |
| Peak | 483 Hz | -0.3 dB | 2.65 |
- Reviews, Comparisons and Sound Samples