First post. Hello to all. Interested in lots of stuff but an immediate need is any guidance finding an owners manual and or schematic for an acoustic collaboration series b-1 amplifier. It is a pawn shop find, seems to work, a couple of findings-power cord is gray, probably not original, the fuse cover is scratched, the interior appears to have been worked on but all is solid and it is quiet. Any information on this amplifier will be appreciated. Thanks. I am looking forward to learning from you all.