I am stillconfused about a basic concept: if one wants to play music at a moderate level, does the wattage produced really matter? I have the Sonus Faber Home Editon Grand Pianos with a 55 watt Nakamichi RE-2 and concomittant tape deck and cd. I am reading all the comments of you more experienced guys as to power, tube, ss or integrated, and I still don't know whether I would notice the difference if I upgrqade. Does the tubevs ss or power accordingly make for better reproduction ofviolins and operatic voices. Not trying to be facetious, I really don't know. Please help a newbie, thanks Alan