butchgo, we have almost the exact system. Do you bi amp your mains or do you have separates for all your speakers? I am considering letting my pre/pro powering my rears and letting the 7500 power my outdoor speakers.
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Anthem D2v
B&K Reference 200.5
Parasound A21
B & W 804
B & W HTM1
Polk Rti 4
Outlaw Audio LFM-1 EX (2)
Playstation 3
Pioneer PDP 6010FD Kuro