Apologies if there is an obvious thing I am missing, but:
I would like to set up channels 1 and 2 as a stereo output.
But I would like to use the two inputs (1&2) to accept two different mono signals, which would both be processed by some FX in the stereo chain. Like for example a clocked delay, where both incoming money signals get processed to become a stereo spacialized signal, each routed to the same stereo output on 1&2.
What is the best way to accomplish that?
Basically want to set up the stereo processing for external signals on ch 1&2, and use 3 and 4 for other purposes.