I'm trying to find out if the AVR-300 can be connected to a separate power amplifier. I don't think the 100 wpc will be enough to drive B&W 803S or D's that I'm planning on using for my mains in a 5.1 system. The Arcam owner's manual says that whatever I use must have a gain of 31 dB--like the AVR-300, otherwise the bass and treble will be unbalanced. The bi-amping wiring diagram, has the AVR-300 controlling the high frequencies and the second amp controlling the low frequencies for each speaker. Not sure I understand this. I'm looking at using a Krell, Levinson, Classe, Mcintosh, B&K, etc for driving the B&W's, using the AVR-300 for the center and rears, the preamp too.... Is this an impossible scheme? I love my AVR-300 and want to keep it as the heart of my HT system. All I (think) I need is the extra gusto to optimize the B&W's potential. Could anyone recommend a specific brand and model # that would comply with the 31 dB and do the job?