Originally Posted by
toddalin
My experience with my 4430s was that when I got them one of the woofers was dead. I replaced it with a known working woofer and it was still dead.
I removed the woofer and pulled the screws holding the crossover. I also had to release the rear nut. What I found was that the speaker wires are soldered to "lugs" that slip over "posts" and one for the woofer had pulled off. I put it back on the post and all was fine.
But, these lugs/posts represent a point of possible corrosion and that may be where your problem lies.