How loud is 20 watts? I have a couple gigs lined up this summer like big outdoor festivals and and clubs and I really like this amp but I wanna make sure it's loud enough.
if its loud enough to keep up with a drummer, then its fine. In an outdoor festival they're going to mic you and bring you to the volume that they want you at.
Yeah, if all else fells, just mic it. Some clubs will do that to so there is more control over the overall mix. At least that has been my experience at most of the different clubs and bars that I have played at.