Michel Bonenfant

I used to own a discotheque and one day one of my multiple woofers caught fire. It started from the voice coil and spread. The culprit was that the woofer picked up DC from an electronic light dimmer. Let's not forget that a speaker is a big microphone. I was using a Kenwood 700M amplifier on the woofers. Only one of the four connected suffered this fate. The amp got checked, nada! The horns did not fry either.