Do you have a question about the Fostex HP-A4BL and is the answer not in the manual?
Critical safety precautions for operating the Fostex HP-A4BL.
Detailed explanation of the front panel interface.
Detailed explanation of the rear panel ports and switches.
Step-by-step guide for installing the USB driver on Windows.
Recommended software for playing DSD audio files.
Instructions for physically connecting the device via USB.
| Type | Headphone Amplifier / DAC |
|---|---|
| Input | USB, Optical, Coaxial |
| USB Chip | XMOS |
| Supported sampling rates (USB) | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
| Headphone impedance | 16Ω - 600Ω |
| Power supply | AC adapter |
| Power Output | 150mW (at 32Ω) |
| Output Power | 150mW + 150mW (32Ω) |
| Frequency Response | 20Hz to 20kHz |
| Signal-to-Noise Ratio | 115dB |
| Total Harmonic Distortion | <0.002% |
| Supported Sampling Rates | 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz |
| Bit Depth | 24-bit |
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