The gasket material is often so tight after all these years that they may appear glued. Use a bit of controlled force, prying little by little around the drivers, and they should come off.

Personally, I don't buy any of these "driver upgrade" stories unless the originals were crap quality to begin with - usually quite the opposite in B&O speakers! It won't be the same speaker any more, and I'm not at all convinced that the change would be for the better. They were carefully designed to work with the drivers that were put in there at the factory.

The crossover caps probably are ripe for replacement, and well worth the effort. You only need to replace the bipolar electrolytics (golden cans in the RL6000 crossover on the first page). Martin (Dillen) can probably furnish you with a ready kit with proper quality components if you don't care for shopping around.

I don't think wiring or connector upgrades will do much in a relatively small power speakers like these... I certainly didn't touch them in my 60.2s, and as I've said on several occasions, I love the sound of them.

you're rights.  It popped off with a gentle pry with a flat head screwdriver.  I decided to remove the speaker fabric, and wondering what type of glue to use when I stretch new fabric because although it doesnt sit up agains most of the speaker, there are two grooves that the fabric gets glued into on the front of the speakers, and there is the logo that has to have the material glued up against.  I'm thinking about fabric glue that dries clear.  Just a light coating..