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how do i troubleshoot a faulty woofer on an AR-4 speaker? Answered

I have a pair of vintage AR-4 speakers but one of the woofers is not working. Any ideas on how I might diagnose and repair the problem?

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 smell it. if it stinks like electrical burn then your coil has gone, if it smells normal its a wire issue.

First, check the wires from the terminals to the cone. Check continuity through the coils. I'd guess the voice coil has burnt out. Replacing that can be done, but I am not sure where you'd get the parts. Steve