this goes back to the A07 review thread which is damn huge and a trove of info... basically guys were getting psus from printers and medical equipment (LOL!) to power the A07
btw. manual is here
assumption will be 3.5 ouitput is coupled with main volume and tone, pretty brain dead if not
btw. manual is here
assumption will be 3.5 ouitput is coupled with main volume and tone, pretty brain dead if not