How do I patch a stereo mix (can be a group or an axu, I’m not fussy) from the DM0 to DM32 over the gigaACE connection, either arriving into a stereo input socket, or a stereo mix or a stereo aux (again I’m not fussy)?
Do I need go use tie lines for this, or can I just patch it direct to a gigaACE output in the DM0, and pick it up from the corresponding gigaACE input in the DM32?
You don’t need to use tie lines for this. Typically you use tie lines to route audio “outside” of the system’s processing. In this case, you are specifically wanting to send processed audio from one system to another. Go directly to the GigaAce I/O card’s Output/Input routing matrix to route it.