Just sold my Denon AVR3300 receiver and was hoping to upgrade to the Anthem AVM20. Unfortunately finances dictate otherwise. So now I'm thinking of the Rotel 1066 pre/pro. How about the Audio Refinement DSP 2? Are there any other pre/pro's to consider up here in Canada? I have thought about the Denon AVR 3802 since I loved the sound of the 3300. However I have external amps so that would probably be a waste. I would love to upgrade the 2 channel sound from my 3300 and was wondering which pre/pro would offer the most significant improvement in that area?