Somehow, I managed to push in the center of the aluminum dome tweeter on my CM8. Does anyone know of a method for pulling a dent out of a dome tweeter?
The best way is to use a piece of duct tape or painters tape - it will often let you pull out the dent. I've done this before with duct tape on a few friends speakers after their kids touched the tweeter. You'll want to use a hairdryer to warm up the tweeter dome before doing this. It will minimize the risk of a crease.
Once you've pulled it out, if there's still a crease, heat it some more and try to massage it slightly with the tape. Good luck!