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How do I repair 12" sub coils? - Car Audio & Video

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You can buy coils online ebay subwooferparts.com and fixmyspeaker.com. or look on youtube for videos of repair for your subwoofer. to take apart the sub use heat like a small torch lighter or low flame on a propane torch. use it on the frame of the subwoofer by/under the surround and spider but not all subs will be able to be taken apart whole. take the sub apart then use a calipers to measure the old coil so you know you buy the right size because it matters in fractions of mm to work or fit. good luck

Posted on Apr 28, 2015

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Posted on Jan 02, 2017

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1 Answer

Why is vacuum condenser light blinking


this is usually a leak in the evap coil,if it's under 12 years old the coil is still under warranty.sub zero is a great machine,the only problem is that the evap coil behind the back wall in the fridge section leaks or a hole develops.the freon leaks out and the fridge section will continue to get warmer,the vacumm coil lite will come on.i've seen this happen to some machines that are 3 years old it happens.you need to get a tech in,he'll recover the gas,evacuate it,replace the coil and add new freon in,if it's under warranty it will be 650 to 750,or if not under warranty 11 to 12 hundred dollars to repair.

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I have a Kicker Solo-Baric, L7, 12 inch subwoofer making a scratching noise. The cone is fine but the inside is not. Can i get this repaired? Kicker said no. This is a $250-300 sub. I hate to just throw it...


The bad news is that your voice coils could be fried up, basically mechanical failure. Might as well buy a new sub because replacing a voice coil means you got to rip the whole sub apart, very complicating.

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hi not worth fixing as labor is to high.

look around on ebay make sure you replace them with a name brand some companies like JBL sell refurbished subs with full warranties for cheap.

Remember with subs you must have a crossover either electronic or just a component in the cabinet so that the speaker is only reproducing the correct frequencies.

Lastly 12" subs require a ton of clean power 200 watts per ch minimum..and if possible they should be either 1 channel amps or bridged to 1 channel meaning for a pair of 12's you would have 2 amps

Contrary to popular belief most subs are damaged because people overdrive their amps and that blows the voice coil

hope that helps

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If you have one sub dual voice coil, just paralel the sub and conect to brigde amp. Simple...

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1 Answer

Wiring the coils together


For each sub, tie the DVCs in parallel ("+"s together, then "-"s together). This will make the subs look like 2 ohms to the amp. Then, put one sub on each channel of the amp. That will put about 280W rms onto each sub, the max for the amp.

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You can't run TWO subs on the bridge!!!!! You will destroy the amp! Put ONE sub on EACH channel.

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