Meter r040 on the crossover board, Check it for a short. It is a surge protector that will short similiar to ac power surge protectors,
Sounds like the voice coils are toast. Did you notice a "burned" smell inside the cabinets? If you have a AA battery around, try briefly touching the battery to the woofer terminals with some short wires. You should hear a noise when the battery touches the terminals. If no noise, check with Parts Express for replacement drivers. If you hear a noise, look for a problem on the crossover board.
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