My Sony STR-DB925 has died and I am looking for a replacement. It is no fun listening to the TV speaker. My Speaker setup is Tannoy MC centre channel, Tannoy M1`s for front and Tannoy M2`s for rear. I am thinking about purchasing 2 more speakers for the rear to get 7:1 surround sound I thought about the STR-DB790 but I have heard it needs a compatible speaker system. Other thoughts are Yamaha AVX750, RX650 or Denon 2805. Can anybody recommend which amp would work ok with my Tannoy speakers. Component setup includes Sky+ digital optical, JVC super VHS recorder and a JVC 28" 4:3 TV which I hopefully will be uprading to a Plasma Screen in the next 6 months.