So I purchased a GK 1001rb mark ll that powers a GK 4x10 Neo cabinet and a GK 1x15 Neo cabinet ... My Fender PBass sounds great as do other Basses that I have except my Music Man Stingray which is active .... I cannot get rid of the popping when I use a pick or that occasional time when my fingernails hit the strings and I can't do any kind of slapping. I have tried all kinds of adjustments and can't tone down that extremely loud tap tap sound anyone have any suggestions?