Audio Systems/jl audio subwoofer

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Expert: - 8/20/2009


Question
i have one 12 inch jl audio sub woofer in my ford ranger and everything worked fine till about 3 days ago and now the only way i can get any sound out of the sub is if i push on it or pull it out i have checked all wiring and fuses and everything else that i can think of tweaked all settings and everything im at a dead end please help

Answer
I would say he voice coil has come loose from the coil form. If so, it will need to be reconed or replaced.

It also possible the lead in wire from the terminal to the spider to the voice coil has melted and has only intermittent connection when stressed by the all in or out movement of the cone.  Either way, the speaker needs reconed or replaced.

A good speaker repair shop can replace the cone and voice coil assembly for around $35 to $50 is my guess.

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Cleggsan

Expertise

Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.

Experience

Have been associated with audio design, standards, testing and component systems for over 40 years.

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Life Fellow Member of Audio Engineering Society Life Senior Member of Institute of Electronic and Electrical Engineers

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Review technical manuscripts for IEEE Spectrum Write occasionally for high-end audio publications

Education/Credentials
BSEE/MSCS/MBA

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Past Employee/advisor to several well known audio products manufacturers

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