Ive been doing some research with regards upgrading my current av amp for stereo sound (squeezebox and cd player). Ive got a Yamaha dsp-ax761 av amp, and its great for multichannel playback, ps3 passing lpcm through the hdmi hookup. I want to upgrade the stereo performance and have read that I can utilise the L/R preouts on the av amp to pass through to a dedicated stereo amp. My question is, do I require an integrated amp, or can I utilise a poweramp stage? Ideally the KISS approach would be appreciated, so that my other half can at least watch tv without me present to set it all up! If a power amp suffices, any thoughts on which ones? I have a B&W 601 speaker setup at present, and believe they can be pushed harder with a better amp (*or am I barking up the wrong tree and infact the speakers are the "bottleneck") thanks in advance for any suggestions!