I have a 1981 Fender Deluxe Reverb that I bought new. I stopped playing some time in '84 and lent it to my brother, who I think my have had it modded for a Brighter (ear-piercing) sound. I've started back up with a band that hates the sound more than I do. It is harsh, bright, and breaks up at around 2 on the volume knob. Also the normal channel has much more power than the vibrato channel; maybe 30%. I've had the power tubes changed (and biased) with j/j's about a year ago which was a marked improvement. I guess the only thing to do is take to a tech and have it checked and/or brought back into spec. Please someone tell me, is this a good amp? Is it worth the trouble?