I'm on the mid-low end of technical knowledge. But having said that I'm also not shooting for "sound nirvana." The decision to have the one sub do "double duty" is solely because I have a set of DQ-10's in my main room along with the in-ceiling surround speakers. Dq-10 are for dedicated music and surround is for, well, TV of course. I just don't want to have two subs in that room. So may plan is to incorporate a simple A/B switch so if it's music, the sub is drawing its signal from one amp, and if it's surround, I switch it and it gets its signal from my A/R receiver.
SpongeSound