The KZ ZEX ranks #76 out of 115 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: KZ
Prices on this page were last checked October 10, 2026 at 5:37 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.
#76 KZ ZEX: $28.99 Amazon eBay
Pros: It pairs a 10mm dynamic driver with a 6.8mm electrostatic driver at a low price, and its 25 ohm load suits phones and dongles. In squig.link measurements bass runs about 2.4 dB above target from 60 to 200 Hz, a warm, V-shaped balance for listeners who like a fuller low end. It rates above the KZ EDX Pro and Final Audio E3000.
Cons: Across 16 hobbyist measurements a 7.4 dB dip near 3.3 kHz pushes vocals back and a 6.1 dB peak near 10.2 kHz adds sizzle to cymbals, while sub-bass sits about 3.7 dB below target under 60 Hz. The KZ DQ6S rates a bit higher at the same price, and the HIFIMAN RE400 rates higher for less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 3.54 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 electrostatic) |
| Drivers | 1 x 10mm dynamic + 1 x 6.8mm electrostatic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 59 (measured by crinacle, via AutoEQ) |
| Impedance | 25 ohms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.7 dB at 30 Hz) |
| Tonal Tilt | -0.09 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.1 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 | +10.5 dB | 0.70 |
| Peak | 63 Hz | -7.6 dB | 0.22 |
| Peak | 2,608 Hz | +11.0 dB | 0.73 |
| Peak | 823 Hz | +4.4 dB | 1.11 |
| Peak | 1,854 Hz | -11.3 dB | 0.98 |
| High shelf | 10,000 Hz | -1.4 dB | 0.70 |
| Peak | 9,677 Hz | +1.8 dB | 2.53 |
| Peak | 4,715 Hz | -5.1 dB | 5.44 |
| Peak | 6,131 Hz | +3.3 dB | 5.78 |
| Peak | 3,526 Hz | +1.5 dB | 3.26 |
- Reviews, Comparisons and Sound Samples