Short answer: the KZ PR2. It ranks #159 of 1291 in-ear headphones by sound quality, rated 4.4/5, at $53.95; the TKZK Ouranos ranks #218, rated 4.3/5, at $51.99. The price gap is small enough that the sound-quality ranking should decide it.
The case for the KZ PR2: Its 13.2 mm planar driver scores 78.8 in the median of 13 squig.link measurements, with bass and mids held within about 1 dB of target from 20 Hz to 3 kHz. Watch for: At 94 dB sensitivity it needs noticeably more volume than most in-ears, so weak phone outputs may run out of headroom.
The case for the TKZK Ouranos: The median of 6 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.71 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The tradeoff: A 4.2 dB peak near 11.9 kHz can make cymbals and sibilance sound sharp.
Buy the KZ PR2. It is rated higher for sound quality, and the $1.96 saving on the TKZK Ouranos is not enough to make up the difference.
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Its 13.2 mm planar driver scores 78.8 in the median of 13 squig.link measurements, with bass and mids held within about 1 dB of target from 20 Hz to 3 kHz.
Amazon $53.95 eBay
The median of 6 hobbyist measurements gives it a very good Harman preference score of 77 with a 1.71 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $51.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| KZ PR2 | TKZK Ouranos | |
|---|---|---|
| Price | $53.95 | $51.99 |
| Ranked | #159 of 1291 in In-Ear Headphones | #218 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 78 (median of 31 squig.link measurements, calibrated to AutoEQ) | 77 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.65 dB standard deviation | 1.71 dB standard deviation |
| Tonal Tilt | -0.18 (negative is warmer, positive brighter) | -0.28 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-1.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Planar magnetic | Dynamic |
| Drivers | 1 x 13.2mm planar magnetic | 1 x 10mm dynamic |
| Impedance | 15 ohms | 320 ohms |
| Sensitivity | 94 dB | 110 dB |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 10Hz - 20kHz (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 KZ PR2 from aftersound, ankramutt, arn, audioamigo, bakkwatan, bassaudio, bassyalexander, breampike, cammyfi, csi-zone, dchpgall, enemyspider, eplv, fahryst, harpo, hbb, hobbytalk, hore, hu-fi, ianfann, isaiahse, kuping-sensi, melatonin, mmagtech, musicafe, pw, scboy, soundcheck39, soundignity, superreview and therollo9; the TKZK Ouranos from achoreviews, cqtek, fahryst, ianfann, pw and timmyv, all via squig.link.
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