AVS Special Member
Join Date: Dec 2007
Location: Southern California
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That kind of depends on how old and exactly which model they are. Are they worth it?
I would disconnect and test each individual driver with a signal generator to make sure they work properly before I put any time or money into the crossovers.
If all the drivers work, I would replace ALL of the crossover capacitors and any resistors that appear to have overheated.
Make sure you use only NON-POLARIZED capacitors that are rated for 100 volts or higher.
PartsConneXion is a very good source for crossover capacitors