Question about Car Speakers & Subwoofers

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Car stereo i blew my kicker cvr sub. the coil burnt. i know i can get magnet wire and rebuild the coil. how do i get to the coil? seems to be all glued together, but i dont want to pry or cut before i know for sure.

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Re: Car stereo

Sorry to burst your bubble, but you CAN'T rebuild the coil, for a multitude of reasons. It's THEORRETICALLY possible, but pragmatically IMpossible. Trust me, I know. Yes, your speaker is glued together (with VERY strong glues. When you dismantle a speaker you have to replace many parts including the surround and spider...). With that said.... There ARE shops that can repair speakers (and, no, they generally don't handwind coils...), but they are far and few and pretty expensive. A base model sub like that would't be economical to repair. I don't know where you're at, but the only one I know of is "The Circuit Shop" in Grand Rapids, MI. feel free to google them and call for a quote.

Posted on Sep 20, 2007

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Re: Car stereo

I live outside the us, and we sometimes rebuild our subs when they are blown. what you need is a solvent like accetone to soak the glue holding the outer suspention to the frame and the outer side of the spider. after the solvent does its stuff, the glue will soften an you can gently pull at the edge of the suspention and spider lifting it away from the frame. you will need a hot soldering iron to desolder the pigtail wires that connect to the terminal. and then just lift out the whole cone/coil assembly! but as far as rewinding the coil is concerned you have to observe the impedience of the winding you are puting on, and you have to get some type of glue that can hold the windings in place under the heat produced during playing of the sub, also glues to reattach the spider and suspention to the fraim. in conclusion, it isnt imposiable to diy but it will take some effort in finding the right adhesives and prob isnt worth the trouble for a low end subwoofer!

Posted on Dec 29, 2009

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According to Kicker the 1500.1 is only stable to 2ohms. So you will want your 4 CVR's to present a 2ohm or higher impedance to the amp.

The best configuration would be to wire the voice coils in series (each sub 8ohms) and then parallel all of the subs to the amp (2ohms). Here's a link to the diagram.

Hope this helps.

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Hello pr7met7me,

Assuming that the "old sony box" has 2 chambers with at least 1 cu/ft of internal volume each, there should be no problem running the Kickers. The CVR's are dual voice coils and come in either 2 ohm or 4 ohm versions. The coils are wired together either in parallel or in series and then wired to the box terminals.

You did not specify what make and model of amp that you intend to use. The amp will dictate how the sub voice coils are wired. You do not want to go below the minimum load that your amp is capable of supporting. If your subs are the 2 ohm version, you wire the dvc's in parallel and then parallel both subs to the amp, your final load to the amp will be 0.5 ohm and there are not many amps stable at that low of an impedance.

The terminals with the white dots are for the first voice coil. The terminals with solid-red and solid-black markings are for the 2nd voice coil. In a parallel setup, you would wire the white-dot positive and the solid-red terminals to the box internal positive and the white dot negative and solid-black to the box internal negative. In a series setup, you would run a jumper from the white dot negative to the solid-red and then connect the remaining terminals to the box terminals.

Hope this helps.

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A word to the wise... start with your volume very low and work up slowly most speakers will puk up the voice coil before the amp starts to get warmed up. you would hate to have to buy a new sub.

Have fun

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Lots of info here; You have to register, but its free. Best of Luck.

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