The 64 Audio U4s ranks #316 out of 450 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: 64 Audio
Prices on this page were last checked October 10, 2026 at 5:37 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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#316 64 Audio U4s: $1,199.00 64 Audio eBay
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.23 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 3 balanced armature) |
| Drivers | 1 x dynamic + 3 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 72 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 11 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Tonal Tilt | -0.30 (negative is warmer, positive brighter) |
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