You could try using a vacuum cleaner hose and maybe a crevice tool. If not, remove the cosmetic ring and unscrew the woofer to gain access from behind.
Speakers are usually rated as the top of the range of power. If you like what you are hearing out of a 33w/ch amp no reason to change.
Speakers are usually rated as the top of the range of power. If you like what you are hearing out of a 33w/ch amp no reason to change.