Brax DSP – Input SPDIF – digital optical / coaxial input module
The Input SPDIF module gives digital sources a direct, conversion-free route into the BRAX DSP. It adds one stereo input pair in SPDIF format to the modular CORE Model, available both as an optical and a coaxial connection.
The module processes PCM data at 24-bit resolution, which the manufacturer highlights for reliable, interference-free signal handling. It is compatible only with the BRAX DSP CORE Model, is offered exclusively as part of the initial configuration and is installed at the factory in Germany.
Key Features
- Digital stereo input: SPDIF format with both optical and coaxial inputs.
- Optical sampling rates: 12–96 kHz.
- Coaxial sampling rates: 12–192 kHz.
- PCM data format: For reliable, interference-free digital signal transfer.
- 24-bit resolution: For detailed reproduction of the digital source.
- Coaxial input level: 1 V at 75 ohms.
- High signal-to-noise ratio: 122 dB (A-weighted).
- Low distortion: THD+N below -108 dB (0.0004 %), IMD below -98 dB (0.0013 %).
Inputs & Outputs
- 1 × optical SPDIF stereo input (12–96 kHz).
- 1 × coaxial SPDIF stereo input (12–192 kHz, 1 V / 75 ohms).
Installation & Connectivity Notes
- Compatible only with the BRAX DSP CORE Model.
- Available exclusively as part of the initial CORE Model configuration; factory-installed in Germany.
Technical Specifications
| Format | SPDIF |
| Data format | PCM |
| Sampling rate |
Optical: 12 – 96 kHz |
| Signal-to-noise ratio (A-weighted) | 122 dB |
| Total harmonic distortion (THD+N) | < -108 dB (0.0004 %) |
| IM distortion (IMD) | < -98 dB (0.0013 %) |
| Bit rate | 24 |
| Input voltage coaxial input | 1 V – 75 Ohms |
Scope of Delivery
1 x Digital input module in SPDIF format












