I have got an Arcam 8R/8P combo driving the front L/R and a Rotel RMB1066 driving the centre and the surrounds in a 7.1 system. The receiver (Denon 3802) is thus doing the processor and preamp duties. Will I get any benefits out of getting a dedicated processor for the processing and preamp stages? Or should I persist with the Receiver? Will the difference(if any) be appreciable? In case I go down the processor route, how much should I expect to spend? And which make/model shoul I look out for? I started the upgrade process because I was feeling a lack of power with the Denon,and now it has completely spiralled out of control!!