Stupid question, cant you just compromise and do 6.1? like DDEX or DTS ES? As far as I konw 7.1 is just the 6th channel matrixed into two is it not? I could be wrong tho :\

1xAxiom ax 1.2 2xPolk Audio R30 2xMordaunt-Short 3.0 H/K AVR 225 Paradigm PDR-10 Sub HTR MX-500