Hello folks, I have a Carvin BA210 combo that’s about 5 years old, like new, I’d say it’s done light duty overall. It’s having a problem: makes a pocka-pocka sound when on, with or without any input. Turning any pot all the way up or all the way down has no effect either. If anyone has an educated guess what the problem might be, fire away. What I really was hoping for was a recommendation to a reliable repair place that wouldn’t rob me blind, in the Chicago/suburban area. Any one have a good experience somewhere? Much Thanks!