Hi guys, I bought a Sony receiver off these forums and am using that as a power amp. The Sony is powering my front 2 speakers(I have bi-amped the front left and right speakers using 4 channels of the Sony) and it is connected to the preouts of the Denon. In this situation should I switch off the fron speakers in the speaker config on the Denon? I think I shouldn't because the Denon is doing the processing. I also wanted to bi-amp the center in the following way - one connector is connected to the centre binding post of the Denon and the other is connected to the extra channel of the Sony(it is a 5.1 system with the Sony) and connecting it to other terminal on the centre (the pre out of the centre on the Denon is also connected to the Sony). With this config, when I switched off the Sony, the centre was so feeble,but I expected it to be almost normal,as the Denon was still powering it. Why is this happening? Am I doing something wrong? Should I not use the Denon to power the centre when I have connected the preout of that channel to the Sony?Am I missing something here?