64 Audio
A4s
A4s
Measurements
1 measurements found.Specs
- Driver type
- Balanced Armature, DynamicSource: 64audio.com · Verified Oct 19, 2026
- Drivers
- 4 drivers: 1 tia high, 1 BA high-mid, 1 BA low-mid, 1 DD lowSource: 64audio.com · Verified Oct 19, 2026
- Sensitivity
- 107 dB/mW126.6 dB/VSource: 64audio.com · Verified Oct 19, 2026
- Impedance
- 11 ΩSource: 64audio.com · Verified Oct 19, 2026
Power needed
Calculate what source power your headphones will need to operate at their best using Headphones.com's Power Calculator.
ohms
dB
Power Requirements
- Voltage (V)
- 0.15
- Current (mA)
- 13.47
- Power (mW)
- 2.00
- Equiv. dB/V
- 126.59