How are these, specifially the Super Jet? Been thinking about getting a nice 50 watt, utility grade combo amp, with verb and a good fat, clean sound, that sounds good for like classic rock sounds, and bluesy-rock, and of course straight up blues. Anybody have experience with these? I did a search and mainly just came up with vintage Ampeg threads, not much on the newer stuff. I also never see them in shops around here anymore.