oldgearhog
Active Member
I owned a BOTL STA-2020 (or 2010) for a while and needed to fix the preamp board. Turns out I couldn't find a schematic for it so had to trace it out. So all the inputs, selector, tone control is there up to the power amp, also no tuner section, but if anybody is curious about taking a look message me and I can email you a copy.




