Question about Jl Audio 12W3 Car Subwoofer

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Sub works but doesn't sound right

My car sub works when i turn up the stereo, and it still vibrates like it is hitting hard but has no sound like it used to. i don't think it is blown though because it doesn't make that rattling sound like when i have blown a sub before?

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Hey been there before u need new rca wires form ur radio to the amp.

Posted on Jan 17, 2009

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My 10" subwoofer is hitting hard but no vibration, why? please help me to fix this issue.


It sounds like your crossover point is too high ie: 100Hz and up can cause vocals to come through.

Or you are having "crosstalk" between channels.

Jan 14, 2014 | Alpine SWS-1041 Car Subwoofer

1 Answer

My 10" subwoofer is hitting hard but no vibration, why? please help me to fix this issue.


You need a low pass crossover set at 80 hz & below. It will stop the music you hear in the sub. Don't expect the feel of a single 10 in a room to be like the same sub in a car. A car fills with pressure & gives the feel you want. A ported box designed to work with your sub will give you 3db or more output than a sealed box.

Jan 14, 2014 | Alpine SWS-1041 Car Subwoofer

1 Answer

1000 watt 2-channel Pyle PDGA240 Gear X Series


Make sure that the gain setting on the amp is turned up high enough on the sub's amp.

Aug 26, 2013 | Car Speakers & Subwoofers

1 Answer

Can I hook two 12in. Subs up with a 1100w amp. Sony explode, pioneer subs


Yes....hook one up to the left channel and one up to the right.....once everything is wired up.....keep gain down on amp and turn stereo on.....turn up stereo with amp gain down to right before high end speakers start to distort......then while its playing, turn amp gain up about 1/2 way. close your trunk and hop in drivers seat....sound gd????? You might have to adjust level on amp and bass on head unit to taste.....Be careful though....pioneer subs are only rated around 300 watts continuous.....dont want to blow them...gd luck....

Mar 20, 2012 | Pioneer Car Speakers & Subwoofers

1 Answer

My subs will not hit when my trunk is closed


just like a speaker system they don't work in a closed box it has to be vented, and you trunk is too well sealed you need to incorporate ports

May 11, 2010 | Car Speakers & Subwoofers

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Subwoofer rattling.


Make sure your sub is securely screwed to your box, boot build, whatever you have it sitting in. Remember subs are made to vibrate when working, check your screws are tight.

Sep 07, 2009 | Car Speakers & Subwoofers

1 Answer

What is the best way to wire my 2 12 fubar subs to my 2 KAC-9103D amps and at what settings so a can get the most out fo everything


for the most part you want your gain turned up to 3/4 and you want to probably take it to a stereo shop that will let you use their db mike to do a couple passes to get it to hit hard and then do some adjusting to clean up the sound a bit

Apr 08, 2009 | Car Speakers & Subwoofers

1 Answer

Subwoofers not hitting as hard as it should.


First thing when your care is idleing turn you system up and watch your rpms. Is it going all over the place when you turn it up?If so your altenator isn't putting out enough power.Might be able to fix that problem with another fadar cap. You should buy the digital read out for your cap to see how bad its draws power.They have ones that will mount to the top of your fadar cap.You can all so get a bigger altenator.Also check your ground clean it along with other connection batter,both sides of you fuse and any other connection,bass will loose all bolts/screws over time because of the bass,even to sub have had one work its way off in a year once.

Mar 03, 2009 | Car Speakers & Subwoofers

1 Answer

Knocking noise with my kicker compvr 15"


comp VR 15s are rated @ 500W RMS 1000Peak.
The lanzar vibe amplifier is 2 x 600W RMS at 4 OHMS 2 x 1200W MAX at 4 OHMS 1 x 2400W MAX at 4 OHMS Bridged 2 x 1000W at 2 OHMS RMS.
Your subs are single 4 ohm subs.
If your subs are wired stereo, they both are seeing 600W. (more than the rated RMS)
Chances are, you have them wired parallel to a 2 ohm mono load - of which that amplifier is not rated. In theory, it will produce about 2000W @ 2 ohm mono for a short period of time.
Your amplifier is too powerful for your subs. Turn down the gain setting to 3/4 or purchase better subs. Also be sur the subs are inthe proper enclosure. It sounds as if they are excurting past their linear x-max and colliding with the rear bump plate. This will cause damage down the road if left as is.

Nov 26, 2008 | Kicker CompVR 05CVR84 Car Subwoofer

1 Answer

Just bought a new car. i removed old stereo and put in my kenwood kdc-w808. whenever there is base in a song it distorts i have to turn my base rite down to get rid of it. worked perfectly well in my old...


your speakers probably cant handle the bass.,also they are probably full range speakers ,so hwen the base hits at the same time a voice is singing the woofer is vibrating to produce the basss,there fore distorting the highs and mids {or voice}.You need to add a seperate sub woofer.And puyt capicitossr on the full ranfge speakers to limit the bass..Rating please. :}

Jun 16, 2008 | Kenwood Car Speakers & Subwoofers

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