The Digital Audio Distribution Amplifier DDA-1112 supports AES3-id 75 Ω and provides 9 outputs with an input loop. The input features clock regeneration for reduced jitter and signal restoration. A signal detection stage permits to control the content of the audio signal. A multi-coloured Led, visible with the door closed, report the card status. The DDA-1112 requires a “single” or a “double” rear connector panel.