Inspecting and cleaning the connections may be a good idea, along with checking the caps for leaks and hot spots on the boards.
Caps detiorate over time, I had a bunch replaced on my Mac Stack at the factory.
Doing some homework and replacing all of the caps may be a good and relatively inexpense project at some point.
One of the aftermarket crossover makers may be willing to advise you and sell you the caps or be willing to do the rework for you and mail your original crossovers back to you. One of the factory autorized repair depot companys will also do anything you want for money. They get bored with all of the warranty work they do and like to trick out products.
If they sound good, I would leave them alone after inspection unless or until you have a good reason.
Hope this helps
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