I recently picked up a used Rev C svt 7 pro. Loving it a lot, but yesterday when I was playing I decided to mess with the Ultra Low button and noticed when I engage it there is a little static noise happening. Seems to work fine, but I was curious if this was normal for this amp or maybe a bad switch? Thoughts... Thanks
Just a little dirty. Switch back and forth a bunch of times rapidly and see if it clears up. If not, a little shot of contact cleaner should.