The KZ ZAS ranks #89 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.
#89 KZ ZAS: $75.99 Amazon eBay
Pros: Bass is lifted about 2 to 3 dB from 20 to 200 Hz, so bass-heavy genres have plenty of weight, and listeners with a bassy or warm taste are the best match. It packs one 10 mm dynamic driver and seven balanced armatures per side. Sensitivity of 109 dB means any phone drives it easily.
Cons: In hobbyist measurements on squig.link the presence range sits about 5.4 dB below target with a 7.5 dB dip near 3.4 kHz, which pushes vocals back and blurs detail. A 5.5 dB peak near 11.9 kHz adds a thin, sizzly edge on top. The Final Audio E3000 carries a higher rating for less money.
| Released | 2021 (5 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 3.18 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 7 balanced armature) |
| Drivers | 1 x 10mm dynamic + 7 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 54 (measured by crinacle, via AutoEQ) |
| Impedance | 24 ohms |
| Sensitivity | 109 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.9 dB at 30 Hz) |
| Tonal Tilt | -1.30 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -5.1 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 | -3.8 dB | 0.70 |
| Peak | 3,021 Hz | +20.0 dB | 0.67 |
| Peak | 177 Hz | -3.3 dB | 1.06 |
| Peak | 2,306 Hz | -20.0 dB | 0.65 |
| Peak | 801 Hz | +4.7 dB | 0.87 |
| High shelf | 10,000 Hz | +2.2 dB | 0.70 |
| Peak | 68 Hz | +0.7 dB | 1.83 |
| Peak | 5,877 Hz | -2.8 dB | 5.99 |
| Peak | 115 Hz | -0.5 dB | 2.49 |
| Peak | 5,429 Hz | +1.5 dB | 6.00 |
- Reviews, Comparisons and Sound Samples