b&k 125.2 amp speaker posts

Is it possible to remove plastic protective cover off these post so you can use spade lugs or bare wire
I believe you can use spades with the binding posts as they are now. For bare wire, you can use it if there is a hole drilled through the post itself. If not, you can get banana or spade connectors that attach to bare wire, and they don't cost a lot of money.