I just bought one of these powerfull little gems used for pretty cheap, I want to use it as my primary amp for my 2 ch system, I wondered if anyone has one of these and could answer a few questions. It seems to have a main,front,center and rear spkr outputs, I was hoping you can use the main spkr channels and the fron spkr channels as A and B spkrs. Any ideas? Thanks for any help. :>