If EVER there was a noob post that cried out for my recent rant about model numbers, THIS is it!
WTF is the mixer? Does it have Direct Outs on RCA? Never heard of such a beast. WTF is the compressor? Does it have 8 channels? If not HTF are you going to sort them?
'Twere me I would "rationalize" the whole shooting match on TRS connectors (obviously keeping the DB25)by making up breakout boxes.
Err, does the Unknown (wooo!) mixer have FX or/and AUX sends? Inserts?
Dave.