I plan on getting the RC-7 and then either Rf3 or Rf5 fronts. I am pretty sure i will be getting the Denon 3802. I want to hook up 6.1/7.1 with it. What should i use for surounds? Rs-3 or Rs-7's? SHould i use them for the sides? If i do what should i use for the rears? or do i only use one speaker for the rears? Please help me with this matter. I would like to stay with klipsch.