Does is there anyone using the AVR-3806? I'd like to know what the advantages are in using the extras set of surround outputs on the receiver. Right now I have it set up as front left, front right, center channel, left side surround, right side surround, and rear left surround and rear right surround, and a left and right sub. = 7.1 setup. My question is, the 3806 has another set of side surround outputs! So I’m not sure what they are for and how they would be mixed in. I mean that would give me a 9.1 surround setup.....:confused: :confused: