Quote Originally Posted by Smokey
Well, lets look at it this way....

Setup a 20 watt and an 100 watt system and then compare the sound quality of both. Initially at low volume level, both systems will sound the same. But as you get slightly louder, as [listening] time wavers on, you note a slight listening fatigue while listening to lower power system. And the fatigue is cause by [low power] amplifier clipping music passages that are reaching up to couple of hundred watts momentary.
Hmm..I don't know if I can agree with that. I'll guarantee you that I can take a 20 watt amp made by Linn or Levinson or Arcam or something like that, put it up against a Sears system that says '100 watts' on the front and my 20 watt system will leave it in the dust.

Now I know you're assuming all things are equal with your post, but the original poster is not. He just asked (something like) "will a 400 watt system sound better than a 100 watt system?" You just can't answer that question.