Yes I have the same model Sherwood and no, it hasn't been serviced in quite some time due to the pandemic. I do have a replacement crossover plate and awaiting a new original tweeter. I think the best route for me right now is to keep the volumes low and replace the old capacitor. I also see some cheaper newer tweeters to install into this classic cabinet ( Replacement Speakers 4.25" Cone Phenolic Ring Tweeter T-135 (simplyspeakers.com) but im sure they don't sound nearly as good.