Power of amp.

"higher the output power (RMS) of the amplifer(2ch), the better the sound quality and deeper the soundstage" Anyone could commnet on this commonly spread idea. Thank you!
I wouldn't agree with that idea at all. The only thing that comes to mind is that if you have excess amp power, then you will have a greater dynamic range. But there are so many factors that could trash that notion too, I feel. I've listed to too many different amps with all other factors being constant to believe any such dogma.
Listen to a 2 to 5 watt SET amp on efficiant speakers or a cheap Monarchy class "A" low watt amp on normal efficiancy monitors and you will get a good answer to your question. There are no set rules, which adds to both the fun and the frustration of this hobby.
Yup, Dekay is right, but so was I. And we really enjoy the frustrating aspects! NOT!!!!!!!!!!!!