i recently went back to using my Vetta II HD and re-bought a Marshall 1960B. i had been using my PODxt PRO with only the direct out for live applications. well, i upgraded my guitar as well. went from a Godin XTSA (with passive pickups) to an Epiphone Phophecy Les Paul Custom Plus EX (with an EMG 81 in the bridge and an 85 in the neck...all from the factory). I loved EMG's when i used them from 2003-2007. never had issues.
from the moment i've tried my new setup at rehearsal, i get a weird static/hum swell after stacatto palm mutes. like a delayed compressor kicking in for 1-2 seconds after i stop. it doesn't seem to happen on my guitars with passive pickups. but the sound only comes out of my cab, not through the PA via XLR direct out of the head. Is this an electrical grounding issue? i've tried different outlets in the basement and the issue remains. i use monster cables at rehearsal, but i have a Line 6 Relay G90 that i use live.
i cannot figure out where the problem is.....today i'm going to try some foam between the bridge and tailpiece as well as behind the nut on the headstock....i dont know this is where the issue is coming from, but i can't seem to find any forums where other people are experiencing this.
any help would be appreciated.