I took some of your sugestions for upgrades, I moved the center chanel to the floor and added more power to the front speakers. Now have a much better 2 chanel sound and better sound from the center chanel. Thanks for the ideas.
I ran my 803's for while with an adcom 5802 which sounded pretty good, and then splurged on some krell FPB 350mc (same chassis as current 450mcx, but biased differently) but I concur with the other two posters, those speakers would enjoy a solid amp. Obviously upgrading and testing out any new product is likely to bring better sound from your system, but there is more equity in upgrading your amps, just my 2c
