Short answer: the Truthear x Crinacle Zero. It ranks #127 of 1291 in-ear headphones by sound quality, rated 4.4/5, at $67.49; the QKZ Khan ranks #194, rated 4.3/5, and costs $69, so there is little reason to consider the other one.
Why pick the Truthear x Crinacle Zero: Oratory1990’s measurement gives it a preference score of 79 with a 1.61 dB deviation, and its two dynamic drivers stay within about 1.3 dB of target from 60 Hz up to 10 kHz. The catch: A 4.5 dB peak near 8 kHz and 2.4 dB of extra air above 10 kHz give it a brighter tilt than target, so sibilant vocals and cymbals can sound edgy.
The case for the QKZ Khan: In squig.link hobbyist measurements the Khan earns a preference score of 77.5 with a smooth 1.67 dB deviation, so its warm, gently V-shaped tuning stays close to what most listeners prefer. The tradeoff: A 5.3 dB peak near 8.7 kHz plus about 3.3 dB of extra air can make cymbals and sibilance sound splashy on bright recordings.
Buy the Truthear x Crinacle Zero. It is rated higher for sound quality than the QKZ Khan and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
Oratory1990’s measurement gives it a preference score of 79 with a 1.61 dB deviation, and its two dynamic drivers stay within about 1.3 dB of target from 60 Hz up to 10 kHz.
AliExpress $67.49 eBay
In squig.link hobbyist measurements the Khan earns a preference score of 77.5 with a smooth 1.67 dB deviation, so its warm, gently V-shaped tuning stays close to what most listeners prefer.
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Specifications Side By Side
| Truthear x Crinacle Zero | QKZ Khan | |
|---|---|---|
| Price | $67.49 | $69.00 |
| Ranked | #127 of 1291 in In-Ear Headphones | #194 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 79 (measured by oratory1990, via AutoEQ) | 78 (median of 17 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.61 dB standard deviation | 1.67 dB standard deviation |
| Tonal Tilt | +0.46 (negative is warmer, positive brighter) | -0.22 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.3 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 7.8mm dynamic | 1 x 10mm dynamic + 1 x 7.8mm dynamic |
| Impedance | 10 ohms | 10 ohms |
| Sensitivity | 117.5 dB | 117 dB |
| Frequency Response | 20Hz - 39.5kHz (Manufacturer specified) | 20Hz - 39.5kHz (Manufacturer specified) |
| Weight | - | 0 lbs (6.8 g) per earbud |
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 Truthear x Crinacle Zero from aden, atechreviews, audioamigo, csi-zone, fahryst, gadgetrytech, hbb, iemworld, jacstone, koi, lown-fi, melatonin, nymz, obodio, precog, sl0the, soundignity, superreview, suporsalad, theaudiostore, treblewellxtended and vsg; the QKZ Khan from achoreviews, aftersound, ankramutt, arn, bassaudio, cqtek, hbb, hobbytalk, ianfann, jacstone, lown-fi, mmagtech, musicafe, nymz, practiphile, pw, soundcheck39, therollo9, timmyv, tonedeafmonk, vortexreviews and vsg, all via squig.link.
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