General Car Audio Discussion & QuestionsAll general car audio discussion goes here. Need help installing speakers, headunits, amps or electrical? Having problems with equipment? Have questions about a product, post here.
I just received my used 15" subwoofer today. I noticed that the coils were almost black . there is no sound when I push down on the sub, and I used the battery test and it seems ok, but should I be worried about the dark color.
Try not to push on a speaker you can actually make the coil rub by doing this if has a tight gap. Also could you get a pic because it sounds like who ever had it before had some power going to it. This made the coil warm enough to burn some of either the insulating coating or an over coating depending on the process that was used to manufacture the coil. Either way it has probably shortened the life of the coil somewhat.
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