Tony offers some good ideas, but they will require the ICBM to be between a receiver or pre/pro and a power amp, since the only way to get a 7.1 analog signal currently is at a receiver or pre/pro. For what it's worth, with the exception of Pro Logic IIx (with the RX-V2500 has) and Lexicon's Logic 7 (which is available on Lexicon gear and some Harman Kardon stuff), all current "7.1" systems are currently 6.1, with the two surround back channels sharing a mono signal - and the ICBM is capable of working with a 6.1 system (using the center surround input).