Hi all. Weird issue here -- I have a newer HD500X and when I plug it into my Mesa Single Rec half stack, I get a crazy loud pulsing buzz.
Works great when I run the same line out to my audio interface
This buzz happens whether the line 6 has power or not, and with all cables or just the line out plugged into the amp input (both L & R).
I tried multiple cable brands/lengths, all the way down to 5'.
I tried different pedals and had no issues.
I tried flipping the physical switches on the HD.
I tried multiple outlets in the house on different breakers. The house is newer and we've never had electricity flow issues.
Unfortunately I don't have any other amps to try, but I can always run down to the local Music Go Round if it comes down to it.
I've been running live multi-effects setups with amps for years and never experienced anything like this. Video clip below. Anyone have any suggestions?
https://www.youtube.com/watch?v=7R3fIg1iJDc