Darn Adam, that is to bad. I've had luck with woofer caps using tape, wrap it around your fingers and gently touch/pull...touch/pull...etc... Try clear tape first, then maybe masking tape, and duct tape as a last resort. Can't help you on the tweeters.

Actualy, another way I've use a vacuum cleaner attachment, carefully move the round attachment towards the cap and it will pop out.

good luck

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