The KZ ZAX ranks #27 out of 68 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.
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#27 KZ ZAX: $65.99 Amazon eBay
Pros: A preference score of 71 in crinacle’s measurement comes from a hybrid design with one dynamic driver and seven balanced armatures. At 24 ohms and 113 dB the sensitivity is very high, so any phone or dongle drives it easily. The slightly warm tilt keeps treble from turning harsh.
Cons: The response sits 2.3 dB from the target on average, so some coloration remains despite the eight drivers. It also costs noticeably more than the CCA C12 for the same rating, and the Tin HiFi T4 rates higher with a single dynamic driver.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.29 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 7 balanced armature) |
| Drivers | 1 x dynamic + 7 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 71 (measured by crinacle, via AutoEQ) |
| Impedance | 24 ohms |
| Sensitivity | 113 dB |
| Tonal Tilt | -0.43 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.5 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 | +1.0 dB | 0.70 |
| Peak | 197 Hz | -3.9 dB | 0.41 |
| Peak | 639 Hz | +3.6 dB | 0.62 |
| Peak | 2,128 Hz | -6.0 dB | 1.80 |
| Peak | 4,125 Hz | +2.9 dB | 0.42 |
| High shelf | 10,000 Hz | +0.0 dB | 0.70 |
| Peak | 4,387 Hz | -3.1 dB | 5.67 |
| Peak | 9,739 Hz | -1.1 dB | 2.42 |
| Peak | 3,351 Hz | +1.7 dB | 4.33 |
| Peak | 6,468 Hz | +2.5 dB | 6.00 |
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