I've had this amp for a year now and just started noticing a gradual drop in volume about 2 weeks ago until finally it stopped making any sound all together. I've owned 2 tube amps before this one and never had this happen. Im not entirely sure whether its the tubes or something else.
Has this ever happened with anyone else? Should I go get a new set of tubes or take it in to a tech?
Also I've never owned an amp long enough to have the tubes conk out. Is changing tubes something I can do on my own or something i should get done professionally? (We've all heard of biasing, but I always heard about it from techs who i only assumed were trying to scare me into paying them to do it)