I can't seem to figure out this HD500 I have here. It's driving me nuts! I currently run the hd500 in a 4cm with a mesa boogie mark V head and a 2x12 recto cab. I have the patches, volumes and everything set where I like it and it sounds good. There are times where my effects like chorus and delay wont work or it's barely just barely perceptible and at the same time, there's a big volume drop when engaging the effects loop on the mesa.
I'll show up next week and everything is fine, volumes, effects sound good and I haven't changed a thing with the board then a few weeks later, back to the same s**t again........ I can't pin this issue down.. I'm ready to smash this unit,,.,,, LOL.