How do I send Machine Control from the D8B to another device such as the HDR?
The D8B is always sending MMC out its MIDI port. Simply connect the MIDI out to the MIDI in of the HDR (the HDR is always ready to receive MIDI Machine Control). Note: The D8B requires MTC (MIDI Timecode) to operate its on-board mix automation. Be sure the device receiving MMC is also generating MTC (or SMPTE – that would then need to be converted to MTC). If you are sending MMC to multiple devices, only one of those devices should send MTC to the D8B. These additional devices should also receive MTC and (depending on the device) also be locked to the master word clock, usually the D8B – if you have the Apogee Clock card installed.