One thing you might try, if you have a heat gun or a hair dryer. Heat the cabinet around the tweeter then apply ice in a. Sandwich bag directly to the tweeter. The sudden contraction might break the bond and while the glue is soft, it may come loose.
tweeter replacement, original glued in
I've an old pair of Michael Green monitors with a VIFA tweeter that a troglodyte burned. I tried removing the tweeter by unscrewing the 4 and tapping out. Seems now that the whole thing is glued in. Any great ideas for tearing this out without destroying the cabinet face and mounting surface? Thank you in advance.