These towers are rated at 250w (sensitivity 92dB). My receiver is a Sony V444ES 115wx5, but when pushed really hard, you can hear these speakers start to give out or run out of juice. My center speaker is a S-Center (150w) and would it sound better/clearer with more power to it. I'm looking for a new amp, definitely something for the front two channels, budget max is $800 (preference is new). My question is, should I just put the money towards a good two channel, and later pick up something to drive the center/surrounds, or should I go ahead a get a lower rated three channel amp. My room is 17x21, 85% movies, and not at exceptional loud levels, but I can tell when the power starts to diminish to the towers. Amps being considered so far: ATI 1802 B&K ST 125.3 Parasound 1000A Then I come across an Adcom 7605 (125x5) that is within my budget ...am I doing another inservice to the S312's by not getting them the power they need? Any advice or options are greatly appreciated.