Looking at the brochure provided by @bryhifi the caps look like polypropylene or similar. If you want to get to them you’ll need to remove the woofer and/or the driver above it which looks like a passive radiator (if it is then it won’t have any wires in the back so simple to handle). Once you’ve taken the screws out you may find the drivers have become attached to the gasket so may need a bit of coaxing out. Probably worth getting a few metres of neoprene gasket before you start in case it doesn’t come away cleanly.
If you lay the speaker on its back and place a towel across the baffle you should be able to rest the driver there once it’s out so you can detach the wires... if you remove the passive radiator first that’ll give you space to rest the woofer. The picture on the top right of the brochure page 1 shows the resistors (white ceramic box shaped components) up close against the capacitors, that’s where I’d visually inspect for heat damage.
It sounds daunting but it should be fairly straightforward if you plan it and don’t rush.
If you lay the speaker on its back and place a towel across the baffle you should be able to rest the driver there once it’s out so you can detach the wires... if you remove the passive radiator first that’ll give you space to rest the woofer. The picture on the top right of the brochure page 1 shows the resistors (white ceramic box shaped components) up close against the capacitors, that’s where I’d visually inspect for heat damage.
It sounds daunting but it should be fairly straightforward if you plan it and don’t rush.