So I bought a JSX combo amp from evilBay. And the clean channel EQ does NOTHING at all. The volume is the only thing on the clean channel that works.
The other two channels, the EQ pots all work fine.
Contacted the seller, she claims to have no idea what's going on, that it was a backup amp that went unused while she used the head version all the time.
My question is this: wouldn't this have to be a mod? If something in the clean channel broke in transit, wouldn't it kill the clean channel signal totally?