I need a (more or less) practice amp that I might use for coffee house gigs where the drummer does not exist, if you know what i mean. I am comparing late versions of these guys, e.g. the tilt-back Bassman. I have played through a BXR and it sounded pretty good to me, handled my 4 string fine. Wondered what difference in tone, bottom end, etc might be on the higher end one? Thanks!