I play a Pbass through an SWR ST220 playing many different styles of music, rock, jazz, country, anything...great versitile amp IMO. I've been reading alot of negative comments about SWR amps, sterile being the most popular comment and "hifi" scooped sound good for slap. I've been using the st220 for many loud rock gigs and never thought twice about it, always happy with my sound even considered my sound to be vintage. I feel like SWR has been branded a modern slappers jazz fusion amp when i think it sounds great as a good ol' rock amp. Anybody else playing rock music with there SWR's and digging it?