So i've solved the problem with my 2:90, and it sounds amazing. Now, I have a Line 6 x2 wireless that I absolutely love. When I use the wireless with the 2:90, I get this hideous hum that doesn't go away. It can't be the wireless cable cause it's a mogami with a neutrik connector, and it was just fine before I switched power amps. When I use a regular cable and bypass the wireless, there is no hum. One thing I discovered is that when I go from the wireless output into the rear input of the axe, the hum is there, but its much lower in volume and more manageable. What's more unfortunate is the tone is worse. Anybody got any ideas/solutions? My tone is so beast now, but is it too much to ask to have amazing tone and still be able to thrash around all over the stage?