I bought these speakers a week ago. The mid-woofer on one of them has a torn surround. I tried gluing it back but that did not do the trick. Is there a source for surrounds for these? I have a extra surround from a Design Acoustics PS 6 which seems to line up but does not look like the original woofer surround. The speakers are listenable at low volumes but there is an occasional buzz from the cone which cannot stay centered. I hope I do not have to replace the woofer on these. Also the silver coil tweeter is too bright for me and is it possible to replace the tweeters with something smoother. The brightness sort of ruins what otherwise would be a great speaker. Any help appreciated.