- Multi SP-DIF Optional digital input/output board for DSP 6to8
- Has 2 SP-DIF inputs (optical, digital)
- One coaxial input (digital)
- One SP-Dif output (optical, digital)
- One coaxial output (digital)
- A connector for AMAS (BT Audio Streaming Module) with support A2DP in High Resolution EDR
- Microphone connector to use the DSP 6to8 as a hands-free set too.