Hi all , I currently have a Marrantz AV7005 proccessor and the MM7055 amplifier . I have 2 more paradigm studio 100s coming for a total of 4 and the cc690 center channel . Now I keep on having people tell me to biamp the studio 100s in the front as they claim there's a real improvement in sound . I was thinking in this scenario that the center may be a issue as it won't be biamped. Anyways my next question would be to upgrade to an Anthem amp with more headroom . I don't know what the general concencis is on the marrantz amp but I think dont an snr of 105 is great , and is 130 watts enough to drive the studio 100's ? So I am debating to order the Anthem A5 as it has 225 watts per ch with an snr of 120db. Or should I pay the extra $1500 and get the P5 which has 325 watts per channel and hopefully never have to buy an amp again ? I don't want to do this 3 times lol. I do realize I have to run another dedicated circuit . I ave a dedicated circuit for my home theatre now , 12 gauge with a 20 amp breaker . They recommend a 30 amp circuit for the P5 alone , so I guess I'm creating more work . The P5 is a heavy beotch to and to deep for most racks . I wanted to buy a Sanus rack but there biggest shelf is rated at 80 pounds where as the p5 weighs 130 pounds .