Sorry but I don't believe that is incorrect ... MD1 / MD2 inputs only have to be configured when connecting discrete multichannel digital inputs (3xSPDIF) ... i.e. from a HD621 or 800D.

For a DD / DTS bitstream which is delivered via a single coax feed, the G68 will automatically detects if the input i.e. D1 is receiving PCM or a bitstream. It then selects the appropriate (Configured) DSP for either 2 channel and multichannel.

Regards,
Carl

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