Hey dudes, I just picked up a Crate V33 head (for cheap!), it has had the resistor error corrected, re-tubed and biased. It runs into a 1983 4X12 Crate cab with Celestion GM70s I think. My question is, at volume is kicks some serious balls, but when I switch from OD channel to clean, it pops like shit. Even at lower volumes it does it. I don't have an original foot switch, I am using a Vox 2 button switch that the guy gave me when I got the amp.
Any ideas what may be causing it or how to stop it? :confused: