Question about Jl Audio 12W3 Car Subwoofer

1 Answer

Do you know if my woofer is blown?

I have a single jl 12w3v2, when i hook it up to my jl e1200 amp, at low volume it sounds clean, but at high volume, my jvc radio just shuts down or sometime it don't but it makes my woofer sounds weird. Listening to my woofer up close sounds like something is rattling, but listening from far away sounds very clean. When the volume is turn up, the woofer has a little rattle even when the amp is adjust, can my woofer be blown.

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  • Anonymous Dec 04, 2008

    dnt worry bro. your jl is not blown. from what i read. my jl audio 12w3v3 does the same thing .if it was blown you would know it trust me .and if it was blown it wouldnt even cut on or if it did cut on it would not reproduce accurate bass .i recommend a band bass to get rid of the rattlin at high volume

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Well if you hear a rattle sound its probably already blown...and the amp could be drawing too much power if the radio shuts off...make sure all your wiring is correct. also if your car is off and you turn it up it will most likely shut off cause the battery cant handle it. but as for the sub i think its blown. good luck

Posted on Nov 16, 2008

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Sounds like you are showing too low of an impedance load to the amp. The E1200 is only stable as low as 2 ohms. If your subs are wired to show lower than a 2 ohm load then the amp will go into protection mode as the volume or gains are turned up

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Check the wires going to the amp for any corrosion on the terminals and ground.

. Kind of like when someone squeezes a garden hose2_bing.gif when your trying to use it. That would be the high volume, starving the amplifier. The capacitor stores power in it to power the amp at high volume. 2 farads would probably be bulletproof on a single amplifier system, but 1 farad should work well enough. Or seek help from an expert on exactly what size capacitor you should use. If you find yourself saying: My amp cuts out.

If this assisted in solving your problem, please take the time to rate it. Thank you.

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Will a jl amp e1200 kick a jl woofer 12w3v2 loud


yes a 1200 watt amp will do the trick.. the problem would be in the box the 12w3v2 sub needs a good size box and you should have one made for your car. and yes you will get the bass you want

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12w3v2 Started making distorted bass noise at low volume


Connect each speaker coil one at a time to a square 9 volt battery and watch for the cone to move.

Also try hooking another speaker to your amp just to make sure the noise isn't in the amp.

You can use a 9 volt battery to test wire polarity also. Hook up the + wire of the speaker to the + terminal of the battery and the - speaker to the - battery terminal. If the speaker moved UP or OUT then the wiring is correct. If it moved IN or DOWN then the + and - wires are backwards on the speaker.

Also if you have two or more speakers hooked together test all the same way while they are hooked to each other. ALL of the speakers need to move in the same direction at the same time.

Clipping causes more speaker damage than anything. "Dirty Power" can happen in good quality amps too. The gain control is to match the voltage between the headunit and the amp. It is NOT a volume or boost knob. If you overdrive the first stage of the amp and then clip it damage will occur to the amp and speakers at some point.

Hope this helps.

Jan 04, 2008 | Jl Audio 12W3 Car Subwoofer

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Only works for RADIO!!!


You're using the wrong control lead. There should be an amp control lead. You're using the power antenna lead.

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could be low current ,disconnect all power including ground for 20min N.B most amps will seem to be shorted at output but this is normal due to damping ratio.

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