I changed posts on kappa 9's many years ago,I don't remember being a difficult task or any circuit board near them.Thanks, Kenny. Do you have to remove the crossover, or just a woofer to access the inside of the crossover.
I would change all of them to cardas or similar quality.
If the crossovers hav'nt been updated with at least fresh caps I would do that as well.
Thanks again.