Tritonesub

A bit late on the topic but just in case anyone has the same problem. My MB started making a loud rattle at some frequencies back on a gig. This was about 15 years ago. Tried to fix it at the time to no avail. Up in the attic it went, into the section marked "crap". Time passes and I've learnt a bit more about fixing things in the intervening years. Decided yesterday to see it it could be saved. Trying it out, traced the rattle to the rear panel - it was vibrating, but it stopped if I applied pressure to the panel. Opened it up. Behind the speaker GK had mounted a rubber amp foot on a post screwed into the rear panel, topped off with silicone, presumably to deaden the vibes. This rested against the speaker magnet. The solution seemed to be that if I could increase the "push" of the speaker on the foot/post, it would transmit this to the rear panel and stiffen it with outward pressure so it wouldn't rattle. Off to Screwfix, got a rubber tap washer about 5mm thick to use as a shim between the speaker and the bracing post. Remounted the speaker,which obviously was now a much tighter fit. Plugged in and voila! No rattle. Job done, amp returned to service. If only I'd had the wit 15 years ago. Never mind, feeling very Moneysupermarket. PS pretty certain the silicone is useless - tried it back in the day, but being soft it did nothing.