Hi, my nordstrand mm5.2 keep distorting when I use it on GK app and amplitube using IRIG - this doesn't happen with my jazz bass. It's difficult to adjust the volume because it's either too loud or too soft. It usually clips and distorts when i slap the bass.. i noticed that the pickup is a bit high, could lowering it change the volume quality? Or the nordstrand mm5.2 has too much mid range that it distorts the headphones??? Thanks!