Hello All, Over the past few months I started getting complaints from sound guys that my signal out of the XLR outs had a low hum. I guess EQing out everything under 10 HZ would solve the problem. Then the XLR outs completely stopped working. Only noise would come out. I had this issue at two different venues before taking it in to my tech. When I picked the amp up we tested both XLRs in to the PA and it worked. A few days later I took the amp to the gig and had the issue where nothing came out of the XLRs other than noise. Has this happened to anyone? I have a pad under my rack so I am doing everything I can to protect from vibrations. Any advice would help! Thank you!