No one has seemed to answer this question, at least if they did, I have not found it. Can the K-1001-K driver from a 5.2 be replaced with the K-1023-K driver from a 5.5. The drivers seem to be only thing that are difficult to replace with factory parts. I read that the drivers a custom made and parts are not available for to long after a speakeer is discontinued. I have found all tweeters and passives on E-Bay.
Thanks,
cjthor