Hey guys, need a little help with amp settings. I've always been a Mesa guy. I've been trying to use the same settings on a Marshall AFD as my Dual but obviously they're not working. I don't have a lot of time to sit there and play with the amp (only have the rehearsal room for an hr). I'm trying to get a good fat tone. Marshall AFD (slash model) and Marshall 4x12's. Thx guys