The KZ EDX Ultra ranks #498 out of 657 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 12, 2026 at 4:13 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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#498 KZ EDX Ultra: $24.99 Amazon $24.99 eBay
Pros: Bass is lifted about 3.2 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. Lower mids sit within about 0.6 dB of target, keeping voices and guitars natural. It uses 1 x 10mm dynamic with an easy 26 ohm load.
Cons: Presence sits about 3.1 dB low with a 6.8 dB dip near 6.7 kHz, so vocals and instruments lose some bite. A 10.7 dB peak near 11.9 kHz can make cymbals and sibilance sound sharp.
| Released | May 2022 (4 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.40 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 66 (median of 13 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 26 ohms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.0 dB at 30 Hz) |
| Tonal Tilt | -0.75 (negative is warmer, positive brighter) |
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