I've got a pair of these AR MSTs. The original woofers were gone when I got them from a family friend, so I replaced them with drivers with the same efficiency and good performance in a small sealed box, as well as a very smooth top-end roll off so there's no breakup to worry about. Woofers are essentially brand new, maybe 2 hours of playing time on them.
This is the 4-tweeter variety. The grill fabric is quite stained, although the frame for it is in fantastic shape, so it would be an easy replacement job if you desired.
Tweeters sell for ~$50+shipping each on feepay. If you feel like parting them out you can make a profit on this deal and keep the woofers for your own use.
Price on the pair will be $300. Picked up here in Morgantown WV.
Link to photobucket:
http://s1071.photobucket.com/user/Uzrnaim/library/AR%20MST
