My Nakamichi AV-10 has A and B front channels and I want to listen to my fronts and in-ceilings at the same time. One of the tech guys said I'd blow the receiver this way because I run two pairs in parallell so the receiver has to supply two times more power for the front. Now what I don't understand is why Nakamichi designed two channels with only option to run one at a time. I'm still trying to figure out whether the tech guy was correct or not. Any ideas? P.S. I'd much prefer to listen to 4 front speakers but looks like Nakamichi does not have a feature to convert stereo to surround sound, or I'm wrong again?