Looks like a 350, but the spacing between pickups is narrower and I see 24 frets instead of the usual 21. The only match I could find was a 1995 350 without the accent vibrato and Hi-gains instead of Toasters. Custom order maybe? Or modded?
I've had this amp for quite a few years, but never noticed this "broken" sounding noise (mainly because I don't use it that much) as if it had a bad speaker cone.
I know about the common Cambridgitis thing due to a faulty optocoupler, but I know this isn't the case because this is the non-optocoupler version. On top of that, I don't notice any drastic volume dropouts, plus the tremolo works just fine.
I'm sure the speaker cone isn't the issue cause I hooked it to an external cab and it does the same thing.
P.S. Excuse the clumsy guitar playing, I don't have a tripod