How I've been doing multiple dacs into multiple things. Sources are two dacs connected via usb and i select which on the computer. The out of the selected dac is routed into my 2400 audio imperium. It has 2 stereo xlr ins, 3 stereo xlr out, one multi that can be a third stereo in or a parallel out (subwoofers), an insert (stereo send and return for analog vu meters).
It has 8 buttons for level (app to program and different levels available for each out), relay controlled, passive and one of the quietest,most channel matched specs I've seen.
