Just picked up a beautiful pair of L96s off craigslist for $25. The only problem is one of the woofers is not working. When I press on the cone it does not move at all, Frozen. I hooked it up and did get some, very little, transistor radio type sound. Does this sound like a recone could be a fix?? any idea of the cost?? it's an LE10-H woofer. All other drivers are correct and in working order, dentless I'm so happy to say..