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U4s
The 64 Audio U4s is a pair of in-ear monitors using hybrid drivers, with a stated frequency response of 10 Hz–20 kHz.
- Type
- In-ear (IEM)
- Frequency
- 10 Hz–20 kHz
- Weight
- Not published
- Impedance
- 11 Ω
Image not availableColor not published
Full specs
Last verified Oct 5, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (64audio.com).
| Frequency response | 10 Hz–20 kHz |
|---|---|
| Driver | Hybrid |
| Drivers per side | 4 |
| Impedance | 11 Ω |
| Sensitivity | 107 dB/mW @ 1 kHz |
| Type | In-ear (IEM) |
|---|
| Connection | Wired |
|---|
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