I have a chance to buy a "vintage" THX certified sub that was mfg'd sometime between 1996-2000. I don't know the previous life this sub led, but it's from a local "vintage" dealer that has a pretty good reputation for having good stuff. It's a good deal on a good sub, but it will not have a warranty. I'm a little worried about the remaining life in the driver, and whether the driver surround, cone & voice coil will last if I start using it regularly. Does anyone have subs they are still using regularly for movies & music after 5+ years?