I believe that a guitar amp doesn’t need to have more than 50 watts of power – ever! Heh! I can hear the clicking of many keyboards preparing their rebuttals to that comment! It’s never wise to make such a sweeping generalization. But there is some sense behind my comment – at least I think so! My belief that more than 50 watts is a waste has to do with where guitarists play, the type of equipment available in live venues if a guitarist gigs, and how output power affects a guitar amp’s performance.