HEY, me again. Thanks for your responses. Drrasta, i tried musicalconcepts but they wont work on the acoustats. however, I did find someone who came highly recommended over at Rockford so if anyone wants this info email me. he has rebuilt many acoustats and seems to know what he's talking about. also, i have learned of some pretty cool (and expensive) all-silver caps that a guy is using in his rebuilts that he swears by. eddie: i think the servo plan is too expensive for me and i dont hve the space...some day, though.