Short answer: the KZ EDX Pro X. It ranks #181 of 1084 in-ear headphones by sound quality (rated 4.3/5); the KZ EDX Pro 2 ranks #561 (rated 3.7/5).
The KZ EDX Pro X is the better-sounding pick. A $16 single dynamic IEM that measures among the best budget models (score 78 across six measurements), with a tight 1.51 dB spread from the target and full sub-bass to 20 Hz. Watch for: The light plastic shell and basic cable reflect the price, and KZ’s published impedance and sensitivity figures vary between listings.
What the KZ EDX Pro 2 does well: A very cheap single dynamic IEM, the second generation EDX Pro. The tradeoff: Treble sits about 2.9 dB below target, a dark, relaxed balance.
Buy the KZ EDX Pro X. It is rated higher for sound quality than the KZ EDX Pro 2.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| KZ EDX Pro X | KZ EDX Pro 2 | |
|---|---|---|
| Price | $15.99 | - |
| Ranked | #181 of 1084 in In-Ear Headphones | #561 of 1084 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x dynamic | 1 x 10mm dynamic |
| Harman Preference Score | 78 (median of 6 squig.link measurements, calibrated to AutoEQ) | 70 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.51 dB standard deviation | 2.02 dB standard deviation |
| Tonal Tilt | -0.33 (negative is warmer, positive brighter) | -0.84 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.2 dB at 30 Hz) |
| Impedance | - | 24 ohms |
| Sensitivity | - | 107 dB/mW @ 1 kHz |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the KZ EDX Pro X from ankramutt, avishai, lown-fi, musicafe, obodio and tdl; the KZ EDX Pro 2 from ankramutt, kuping-sensi and theaudiostore, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for KZ EDX Pro X:
- KZ EDX Pro X vs KZ EDX Pro
- KZ EDX Pro 2 vs KZ EDX Pro
- CCA Rhapsody vs Moondrop Lan
- EPZ G20 vs CCA Rhapsody
- CCA Rhapsody vs Ooopusx OP24
Prices on this page were last checked October 15, 2026 at 5:41 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.
The Two Headphones In Full
A $16 single dynamic IEM that measures among the best budget models (score 78 across six measurements), with a tight 1.51 dB spread from the target and full sub-bass to 20 Hz.
Amazon $15.99 eBay
A very cheap single dynamic IEM, the second generation EDX Pro.
The Audio Store eBay