64 Audio A4s
Custom in-ear monitor (CIEM)
Headphones$1,199Manufacturer list price
Specifications
- Type
- Headphones
- Description
- Custom in-ear monitor (CIEM)
- Topology
- 1 dynamic + 2 BA + 1 tia
- Signal path
- Analog
- Channels
- 2
- Channel format
- Stereo
- Form factor
- in-ear monitor
- Powered
- No
- Drivers
- 4-driver hybrid: 1 tia high driver, 1 BA high-mid, 1 BA low-mid, 1 dynamic low driver
- Frequency response
- 10Hz-20kHz
- Sensitivity
- 107 dB/mW (94mV) @ 1kHz
- Impedance (Ω)
- 11
- Back design
- Custom-molded shell; sealed, interchangeable apex module: m20 included, mX/m12/m15 optional
- Country of manufacture
- USA
Details
I/O: Detachable professional cable, 48" or 64" length (connector type not stated)
Notable use: Custom counterpart to U4s; professional stage monitoring, studio work, critical listening
Notes: FLAG: custom-fit, requires ear impressions (not universal).