Short answer: a tie on sound quality. Both are rated 3.7/5 (#639 and #669 of 1291 in-ear headphones) at nearly the same price ($13.95 vs $12), so choose on features and fit.
Why pick the GK Kunten: The median of 18 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.07 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. Watch for: Presence sits about 4 dB low with a 6.6 dB dip near 5.8 kHz, so vocals and instruments lose some bite.
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 GK Kunten or the KZ EDX Pro 2 on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
The median of 18 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.07 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
AliExpress $13.95 eBay
A very cheap single dynamic IEM, the second generation EDX Pro.
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Specifications Side By Side
| GK Kunten | KZ EDX Pro 2 | |
|---|---|---|
| Price | $13.95 | $12 |
| Ranked | #639 of 1291 in In-Ear Headphones | #669 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 43 ohms | 24 ohms |
| Sensitivity | 109 dB/mW | 107 dB/mW @ 1 kHz |
| Frequency Response | 20Hz - 40kHz | - |
| Harman Preference Score | 70 (median of 18 squig.link measurements, calibrated to AutoEQ) | 70 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.07 dB standard deviation | 2.02 dB standard deviation |
| Tonal Tilt | -0.77 (negative is warmer, positive brighter) | -0.84 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.8 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.2 dB at 30 Hz) |
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 GK Kunten from aftersound, ankramutt, audioamigo, bassaudio, boizoff, digaoreviews, dvewlsh, enemyspider, eplv, fernandagunsan, filk, jaytiss, kuping-sensi, obodio, practiphile, sl0the, soundignity and theaudiostore; the KZ EDX Pro 2 from ankramutt, kuping-sensi and theaudiostore, all via squig.link.
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