I am a newb, and neither know the correct terms or description of my problem. As in the title, I have this combo(8 ohm cabs). Should my Hartke XL410 be distorting with the volume of the Shuttle at 12 o'clock? Right now, the pre is set at about 2 for the gain and volume, the eq is pretty much flat, signal shape is off. I bought the XL used, and am not really sure I bought a POS. When trying each cab seperately, the amp clip light comes on before anything distorts, so it's hard to determine the problem seperately. Not sure if this would be normal, but I don't get any great volume out of this rig, w/o the Hartke giving out. OBTW, the Avatar is a 212 NEO.