Short answer: the IKKO OH10. It ranks #470 of 1291 in-ear headphones by sound quality, rated 3.9/5, at $199; the NiceHCK NX8 ranks #571, rated 3.8/5, at $199. The price gap is small enough that the sound-quality ranking should decide it.
The case for the IKKO OH10: In oratory1990’s measurement it earns a preference score of 73 with a smooth 1.9 dB standard deviation, so few frequencies stick out. The catch: A dip of about 4.5 dB near 6.2 kHz slightly softens the edge of cymbals and consonants.
Why pick the NiceHCK NX8: Its 8 driver tribrid design measures smooth and warm across 20 measurers, with a 1.93 dB spread, bass about 1.6 dB above target and clean extension to 20 Hz. The catch: Presence drops about 4 dB with a 5.2 dB dip near 4.6 kHz, which takes some edge and clarity off vocals and guitars.
Buy the IKKO OH10. It is rated higher for sound quality than the NiceHCK NX8 at the same price, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
In oratory1990’s measurement it earns a preference score of 73 with a smooth 1.9 dB standard deviation, so few frequencies stick out.
IKKO $199.00 eBay
Its 8 driver tribrid design measures smooth and warm across 20 measurers, with a 1.93 dB spread, bass about 1.6 dB above target and clean extension to 20 Hz.
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Specifications Side By Side
| IKKO OH10 | NiceHCK NX8 | |
|---|---|---|
| Price | $199.00 | $199.00 |
| Ranked | #470 of 1291 in In-Ear Headphones | #571 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (measured by oratory1990, via AutoEQ) | 71 (median of 20 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.94 dB standard deviation | 1.93 dB standard deviation |
| Tonal Tilt | -0.63 (negative is warmer, positive brighter) | -0.81 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.9 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) | Tribrid |
| Drivers | 1 x dynamic + 1 x balanced armature | 1 x dynamic + 6 x balanced armature + 1 x piezoelectric |
| Impedance | 18 ohms | 19 ohms |
| Sensitivity | 106 dB/mW | 111 dB/mW |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 30kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
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 IKKO OH10 from arn, audioamigo, bukanaudiophile, cqtek, dl, harpo, hbb, hobbytalk, iemworld, koi, mmagtech, precog, pw, rg, superreview, timmyv and vsg; the NiceHCK NX8 from aden, atechreviews, audioamigo, banzai1122, boizoff, cqtek, dl, eplv, flare, hobbytalk, jaytiss, kuping-sensi, obodio, silicagel, soundignity, superreview, tonedeafmonk, treblewellxtended, vortexreviews and zerostresslevel, all via squig.link.
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