A few years ago, the sound of my JC55 became sometimes very distorted and ultra compressed, and at all, it was like an amplifier with 2 or 3 watts...

The amp was repaired but after a few months, the problem came back. I didn't received any explanation about which problem was involved.

I didn't use this amplifier during one year or two. The problem was away, and then once again it happened again.

At the beginning I had only some variations with the output level, and after an ultra compressed sound (a sound that you can not use to play with).

My question is the following : do you think that this is a big problem or not? A new amplifier like a Cube 60 or a Peavey don't cost too much, so sometimes the price of the repair is so big that you can almost afford a new amp.

Thank you for your aguments.