Energy 22 Pro Need Assistance

How does one safely remove the drivers from the Energy 22 Pro speakers? there are no visible screws and I'm reluctant to start attacking with a screwdriver....
You're help, as always, is much appreciated
thanks johnk--i figured as much. since the foam's glued down, i guess i have to tear it out and replace it somehow, but so it goes.
You can use felt madisound has it with adhesive back you will need to cut out the gaskets so if you can remove intact and trace to make that easier.