I'm a bit new so go easy ta.. I have owned a Yamaha DSP A2 for a couple of years now, and it run my B&W603's fine, but since my upgrade to Definative Tech 2004 they seem underpowered. I'm not in the market for a 5/7 chan power amp just yet, will wait till all the new formats are out and widely used before i take that jump. Basically im after a 2channel amp to help my def techs run a lil better. (untill i have all the funds for a seperate Processor + amp) Can anyone here suggest some good amps i should be looking at (rather than put 100% trust into the salesman) Speaker specs are Recommended power 20-300 watts Two 5 1/4" cast-basket upper bass/midrange drivers and Two 1" pure aluminum dome tweeters. One PowerField 10" subwoofer w/250-watt RMS Infinite Power Source amp.