Any tricks to remove drivers from a (sticky) cabinet

Install a pneumatic valve on the rear of the cabinet.  Pressurize the cabinets to 35 psi.  Grab some popcorn and enjoy the show.

non-sealed cabinets will require a little extra creativity.  Duluth Trading Company briefs stuffed in openings seem to provide the “correct” balance of mass and density.

or, just turn them upside down and shake them.

@larryi 

This was my attempt at humor.  Guess some people are better at telling jokes than others.

I'm an experienced builder/servicer involved in performance upgrades.  Yes, working with the holes in the frame does lower the drama and incident of involuntary speaker cone and/or cabinet modifications vs prying on the outside of the frame.  Engaging a couple of threads on a bolt/screw seems to do the trick -- every time.  

Thanks for the instructional video.