I'm currently in the process of re-configuring my studio. I will be using 4 systems with Audiophile 2496 soundcards and I need a mixing desk to sum the outputs from each (i.e. stereo SPDIF or RCA from each) without latency. Does anybody have any reccomendations? I'm looking at Behringer's product line right now but I don't know anything about the noise levels involved. I'd prefer not to have to get whole bunch of RCA to 1/4 adapters, though I'll obviously do it if need be.
So what are people using for this purpose? Any favorite picks?