Hello all, We just replaced our television (and older Hitachi Rear Projection) with a Sony XBR55HX929 (after much research). We love the new Sony television, but need to marry it with a good sound (or A/V) receiver. What I have now is an older Kenwood VR2080 that my son gave me along with Bose Acoustimas speakers (5 speakers and a subwoofer). The problem is, the optical inputs on the Kenwood don't seem to be working. I even called the Kenwood support line and they walked me through the steps that should have worked, but still unable to get any sound using those inputs. When it was working the Kenwood was a great sounding receiver, but now that it's not working, I'm thinking this is a good time to get something more appropriate to the new TV. I still want to keep the Bose Speakers as I was happy with them. I don't want to spend more than $400, so I'm looking for recommendations for a receiver. Also, should I just get an audio receiver or a A/V receiver? What are the advantages of an A/V receivers? I have 5 speakers. - set up for 5.1 surround sound. Will a 7.1 receiver work?