Ok, I have two jcm 900's one a 50 watt and one 100 watt. I really don't hear that much difference in volume. Let me day that no enough anyway. When both are crankedthey bith sound great. The 50 breaks up a little sooner but otherwise they are not much different. Maybe if I was playing really large venues it would make sense but for club gig and even some outdoor gigs it has worked fine besides I an usually mic'd up when gigging. What do you guys think? 100 watters better?