Hey all, Last week my GK 800RB died while plugged into my 410 HPS cabinet. Crackling was heard and then the volume faded and came back then nothing was happening at all. Since then, I've purchased a peavey nitrobass and today when i plugged it in to the same HPS 410 cabinet I could hear a light rattling, distorted sound. Whats wrong with my amp? Is it just a dodgy speaker cabinet (it cost $600 AU new) or a cracked speaker? I'm certain its not the head. Thanks in advance.