High, my name is Kurt Canison and I own a Seymour Duncan Bass Substance amplifier, and I'm trying to find diagrams, parts, and information and this killer amp, I am also running dual amps with a Sunn Model T 1st generation and I'm in the same boat with that amp, if anyone could help me with this, I'd appreciate it n' getting me on the road. _Kurt \w/><\w/