>>Don't quite understand your subwoofer problem, but if you connect the sub to the "sub" or "LFE" output of your receiver, and properly calibrate all your speakers, your sub should be balanced with the 22s just fine.
I think the question here is "if I have speakers hooked up in two rooms, but the subwoofer is only in one room, how do I wire things up so the sub only runs when I am in that room ?". Sounds like Foghorn was using the sub out before but switched to using the "high level inputs" on the sub (connected to speaker outs from the amp) so the sub would only be active when the speakers in that room were active.
My understanding is that you normally get a small loss of sound quality when using high level inputs (since the signal now has gone through the amp as well and is brought down to line level with resistors) but the difference should be pretty small.
Your description of analog vs. coax digital vs. optical digital was nice, should be a stickie
