I dropped out of school in late '68 to play full time with an established local band. It was a seriously good band featuring two notables - Brian Sim on guitar and Ken Hodgkinson on Hammond organ. We covered a lot of great material, but no other band in the northeast did a better job of hard rock. I was both privileged and fortunate to have been involved. Between Brian's Marshall stack and Ken's twin L-122 Leslies (powered by Dynaco amps) I did the only thing any self-respecting bass player would do: I used a Traynor YBA-3 with two Big-B (8x10) cabinets or a single Big-B with the folded horn 18". This later version of the amp (with the chrome bumpers) pushed out ~ 160 watts RMS.