Brax DSP – Output SPDIF

Brax DSP – Output SPDIF – digital optical / coaxial output module

The Output SPDIF module turns one stereo output of the modular BRAX DSP into a digital link. The music signal travels to the power amplifier unconverted, so D/A conversion takes place only immediately before the amplifier stages. The module is compatible only with the BRAX DSP CORE Model and is available exclusively as part of the initial configuration, installed at the factory in Germany.

Together with BRAX amplifiers it enables the proprietary DiSAC (Digital Signal Analog Controlled) volume control, which the manufacturer describes as working without loss of sound quality: DiSAC with the BRAX MATRIX MX4 PRO, and DiSAC 2.0 with the BRAX REVELATION RX2 PRO fitted with its optional digital input module.

Key Features

• Digital transfer to the amplifier: No conversion in the DSP output; D/A conversion happens in the amplifier.
• Optical and coaxial outputs: Stereo SPDIF on both connection types.
• Switchable sample rate: 48, 96 or 192 kHz.
• 24-bit resolution: PCM data format.
• Coaxial level: 1 V at 75 ohms.
• DiSAC with MX4 PRO: Volume control of the BRAX MATRIX MX4 PRO via the digital stream.
• DiSAC 2.0 with RX2 PRO: Requires the RX2 PRO’s optional digital input module.
• Measured performance: SNR 122 dB (A-weighted), THD+N below -108 dB (0.0004 %), IMD below -98 dB (0.0013 %).
• Measurements in software: Measured values are displayed in the DSP PC-Tool (from V4.42a).

Inputs & Outputs

• 1 × optical SPDIF stereo output.
• 1 × coaxial SPDIF stereo output (1 V / 75 ohms).

DSP & Sound Tuning

• Sample rate selectable at 48, 96 or 192 kHz.
• DiSAC / DiSAC 2.0 volume control with compatible BRAX amplifiers.

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

Scope of Delivery

1 x Digital output module in SPDIF format