Uber ultra MV switch


Active member
I was playing around with the footswitch and master volume. Every time I switch back and forth from MV1 to MV2 there is a very loud pop.

Would not be acceptable to use in a live situation. Just wondering if that is the norm or if something is wrong.
Manual sez;

"- Foot-Switchable MASTER VOLUMES, fx-loop must be engaged!"
Hmm, the amp is away for the night but I'll check it out more. I was playing with it today, 99% sure the FX loop was OFF, at least on the footswitch it was. Not sure if there's a way to engage it on the amp itself?

I kept going back and forth on the MV again with no pedals in the loop. It still popped but not as loud and not as often as before. Definitely odd.