Where do you get old audio gear repaired?
This place. Might take them a while to get to it, but the cost is reasonable and the quality is excellent. They were the only places I could find locally to recone some old speakers for a reasonable rate and they even happened to have the exact foam made for that model. Yes, the shop looks like something you would see see on a TV show on hoarders, with a narrow path among the piles of audio equipment, but that adds to the charm.