I'm thinking of getting a used SWR Basic Black. My main concern is, will it have too much of a modern, bright tone? I want to fool around with different types of music, and I don't go for a super-modern tone. I'm not usually slapping. Can it be adjusted to give a more modern tone? Also, is the power sufficient? I'm not in a band right now, but if I was I'd like to know it could handle a band rehearsal or small gig. It's pretty low-powered by today's standards, and the cabinet is a little small. Do they hold up well over time?