Here is the deal. I will be receiving a Swan Diva 6.1 package in late May which includes 6.1/r3/c3. I bought a Parasound HCA-855 to power the 5 speakers through a Denon2802. I'm thinking of buying 2 more r3's for the rear surrounds for 7.1. Should I use the Parasound for all the surrounds(leave one chan open the r3's are 4ohm) and buy a powerful 3 chan for the mains and center. Or just pick up a 2 chan amp and use that left over chan to power the center. I heard that you should have the same company driving at least the front soundstage. Amp suggestions? Comments?