Are those easy to fix?Also could be a broken tinsel lead.. Been there done that many times on my L7..
I'm working on it right now. But its gonna take a while. Gotta take out both amps. The amp rack. the box. then the speaker.why don't you just unscrew it and look?
check wiring, and use a dmm to make sure both of the coils say 4 ohms.
shouldn't take more than a couple minutes.