So I just got this amp today. I bought it off the tb classifieds. It powers up but there is no sound coming from the speakers. (Hooked it up to my computer and there is sound coming from the xlr so that works). I use a genz benz neox212 cab. The seller said he tested it before shipping it and said it works great. So maybe something came loose during shipping? I made sure all connections were right. I have an eden wt405 amp and it works with the cab. I tried both the Speakon out and the other output on the lm2 but still nothing. Any ideas? I'm still waiting for the seller to respond but maybe someone has experienced this before.