Bought a WT300 a few months back, but have just now got a cabinet (D210XLT8) plugged it in for the first time and I'm getting nothing but distortion at a low volume. I've taken Qtips to all of the inputs/outputs, tried different cables, but nothing seems to help. The D.I. And headphone jacks have worked flawlessly since I've had it. This is the first time I've had it plugged into any cabinet since I've owned it. Any advice would be greatly appreciated!!!!!!!!!!!