- Input: High Speed USB 2.0 asynchronous connection - type B receptacle
- Supported operating systems: Apple Macintosh and Microsoft Windows (Alpha USB Windows driver)
- USB audio class 2 compliant
- Outputs: switch selectable, coaxial SPDIF - BNC, 75Ω or balanced AES type - XLR, 110Ω
- Supported sampling rates: 44.1kHz to 192kHz
- Supported word lengths: up to 24-bit
Great care was taken in the design of the Alpha USB to isolate the noisy computer/USB environment from the digital audio output. The USB receiver and processing are powered by the computer, while the output master clocks and line drivers are powered by a separate isolated linear power supply.
Two key factors combine to achieve the excellent audio performance of the Alpha USB - the unprecedented degree of electrical isolation between the USB input connection and the audio output and the very low noise/low jitter performance of the individually tested audio output master clocks.
Source: Berkeley Audio Design
Price $1895
