Short answer: the Canpur Silver Flash. It ranks #557 of 1291 in-ear headphones by sound quality, rated 3.8/5, at $129; the Kiwi Ears Airoso ranks #636, rated 3.7/5, at $129. Close enough in price that the sound-quality gap is the deciding factor.
The case for the Canpur Silver Flash: A broadly balanced tuning with a preference score of 72 against the Harman target. The catch: An uneven response, 1.9 dB standard deviation from target.
The case for the Kiwi Ears Airoso: A warm, even tuning measured by 23 people with a 2.0 dB spread: bass sits about 2.6 dB above target with clean extension, mids stay close to neutral, and upper air lifts about 3 dB. The tradeoff: Presence dips about 3.5 dB with a 6.6 dB low point near 5.6 kHz, softening vocal edge, and a 3.9 dB peak near 12 kHz adds some brightness.
Buy the Canpur Silver Flash. It is rated higher for sound quality than the Kiwi Ears Airoso at the same price, which makes it the one to get unless you need something the other one does better.
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A broadly balanced tuning with a preference score of 72 against the Harman target.
Addicted To Audio $129 eBay
A warm, even tuning measured by 23 people with a 2.0 dB spread: bass sits about 2.6 dB above target with clean extension, mids stay close to neutral, and upper air lifts about 3 dB.
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Specifications Side By Side
| Canpur Silver Flash | Kiwi Ears Airoso | |
|---|---|---|
| Price | $129 | $129.00 |
| Ranked | #557 of 1291 in In-Ear Headphones | #636 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 72 (median of 8 squig.link measurements, calibrated to AutoEQ) | 70 (median of 23 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.92 dB standard deviation | 2.00 dB standard deviation |
| Tonal Tilt | -0.68 (negative is warmer, positive brighter) | -0.75 (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 (+0.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) | Hybrid |
| Drivers | 1 x dynamic + 2 x balanced armature | 1 x dynamic + 4 x balanced armature |
| Impedance | - | 18 ohms |
| Sensitivity | - | 110 dB/mW |
| Frequency Response | - | 20Hz - 20kHz (Manufacturer specified) |
| Weight | - | 0 lbs (12 g) per earpiece |
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 Canpur Silver Flash from aden, eliseaudio, elrics, hbb, lestat, practiphile, superreview and tonedeafmonk; the Kiwi Ears Airoso from aden, aftersound, atechreviews, avishai, awsmdanny, bassaudio, cqtek, ducbloke, gadgetrytech, hbb, iemworld, jaytiss, joshtbvo, joycesreview, koi, kuping-sensi, pw, silicagel, soundcheck39, soundignity, timmyv, tonedeafmonk and vortexreviews, all via squig.link.
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