Question about Jl Audio 12W3v2-D2 Car Subwoofer

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Dimension please for enclosure 12w3v2-d2

I have a jetta 3 which has a nice deep and wide boot. i wish to build an enclosure to house 2 jl audio 12w3v2-d2 subs (slot port box) port to be in the centre, between the subs. please can sumone help me the dimensions for this type of box. please please help.

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  • richard ov
    richard ov Oct 29, 2008

    hey i just picked up the same subs and was looking for a dimension chart at the jl audio homepage but couldnt even find the subwoofer,,, so i sent a e-mail to the tech support and if i hear back ill post here for you

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I have run 2 12" jl w3v2 d2's for about 6 yrs now. I found that a box that is 1.4cu ft per sub is ideal. Google "Re audio box calculator" and apply the dementions that work best with you space. Also rememember to allow for the thickness of the baffle by adjusting your frequency a little lower than what you actually want it tuned to.

Posted on Sep 16, 2012

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Hey,, i just bought the subs myself and was looking for the same thing as you are,, i looked at the jl audio homepage top see if i could find some awnsers but i couldnt even find the speakers there much less any type of dimension chart,, so i e-mailed their tech support and if it turns up anything ill forward what ive found,, and 1 cubic foot is not enough not for these youll end up overheating the voice coil for sure.. but id highly reccomend doing a series bridge at 300 watts X4 ohms for the best bass range w these speakers!!

Posted on Oct 29, 2008

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Typically you use one cubic foot per sub, so a 2 cubic foot box will work fine. To build a basic one, just a rectangular box, using 3/4" MDF (excellent material for a box), cut pieces this way:

2 - 25.5" x 13.5"
2 - 25.5" x 12"
2 - 12" x 12"

This will give you an interior volume of exactly 2 cubic feet. Cut your sub holes out of one of the 25.5" x 13.5" pieces.

Posted on Sep 24, 2008

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1 Answer

Hi i have a 15"w3-d4 jl audio sub,can anyone tell me what size antype box i should use ie sealed or ported and the box dimensions


Hi,
I've had a look at the JLaudio website and they recommend 2 box designs, a ported and a sealed.
The sealed box needs a volume of:
2.125 ft3 or 60.2 litres.
To get this you would need to build the box to these dimensions:
22" x 16" x 14.75" or 559mm x 406mm x 375mm
The ported box needs a volume of:
3.50 ft3 or 99.1 litres.
To get this you would need to build the box to these dimensions:
24" x 19" x 18" or 610mm x 483mm x 457mm.
The port needs to be:
3.0" x 10.9" or 76mm x 277mm.
The enclosure recommendations listed above are external dimensions which assume the use of 3/4" (19mm) thick material. If you are using 5/8" (16mm) thick material, subtract 1/4" (6.5mm) from each dimension. Do not use any material with a thickness of less than 5/8" (16mm) as this may compromise the rigidity of the enclosure.
• All enclosure volumes listed above are net internal volumes! Driver displacement, port displacement and brace displacement must be added to obtain the final gross internal volume. All enclosure dimensions above have already taken this into acount.
• When using two subwoofers in a common enclosure simply double the required volume and, in the case of a ported enclosure, use two times the recommended port(s). Likewise, when using three subwoofers in a common enclosure simply triple the required volume and, in the case of a ported enclosure, use three times the recommended port(s).
• We recommend the use of this speaker in a bi-amplified system using high-quality satellite speakers and a high-quality amplifier. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.
As you can see it all depends on the space you have available, whilst the vented box will give you a more efficient bass responce especially with the low range frequencies.

If you to go and look at the information about your sub woofer and find out all the information about building or buying the correct enclosure then this is the link to the pdf file I found:
The enclosure info is on page 3:
JL AUDIO 15W3 Tech Specs and box info.
Warm regards
Mike

Oct 12, 2010 | Jl Audio 15W3-D4 Car Subwoofer

1 Answer

Jl audio 12w3v2 sounds like its blowing air out of box


if you cant see a physical cut or **** in the rubber surround or anywere else you can try to check the wires going from the plug to the actualy speaker itself on the back of the speaker if those are fine then its probably blown if its not that old you can try and contact jl and see if they will replace them i know kicker has some kind of replacement system in play not sure of jl

Feb 28, 2010 | Jl Audio 12W3 Car Subwoofer

1 Answer

I have a JL audio 12W3v2-d4 subwoofer which has two sets of terminals and i needto know how to wire them correctly as my old one only had one set of terminals . i bought it second hand and didnt get wiring...


Your amp is stable bridged mono at 2ohms, however, having dual 2ohm voice coils will drop the amp to 1ohm if parallel and will kill it. The cleanest possible way to run this amp and keep it cool with lots of headroom is to run the coice coils in series then run the amp in mono @ 4ohms. To do this, run from one voice coil to another, a jumper. connect positive from one voice coil to the neg of the other voice coil. Then connect the remaning positive on one voice coil and the neg from the other voice coil to your amp (positive left and negative right on the amp) If your amp has a switch for momo make sure it is on, some are automatic. Hope this helps

Jan 02, 2010 | Jl Audio 12W3v2-D2 Car Subwoofer

1 Answer

How to wire a JL audio 12W3v2-d2 subwoofer . there are two sets of terminals how are they connected two the amp


http://mobile.jlaudio.com/support_pages.php?page_id=161

THE ABOVE LINK WILL TAKE YOU TO THE CORRECT PAGE ON THE JL AUDIO WEBSITE THAT PROVIDES A NICE TUTORIAL ON CONNECTING YOUR SUBS. THIS IS FOR THE DUA VOICE COIL SUBS. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Jan 02, 2010 | Jl Audio 12W3v2-D2 Car Subwoofer

1 Answer

Just want to know if its wired in to 4ohm


Hello fla2ga1008,

To wire the D2 voice coils for 4ohms, you simply jumper the positive side of one coil to the negative side of the other coil (series). Connect the remaining terminals to the amp for a 4ohm load.

If you wire both positives and both negatives together and then to the amp terminals (parallel), the impedance seen by the amp is 1ohm.

Hope this helps.

Jul 31, 2009 | Jl Audio 12W3v2-D2 Car Subwoofer

2 Answers

My tinsel leads to one woofer keep frying


also after repairing unless it's done by a true professional normal solder will not work.. it doesn't flex as well as it does from factory, and it's very hard to extend tinsle lead length, I would suggest returning to original store for swap or return to JL for swap.. (or get new ones.... not JL :) )

Jan 26, 2009 | Jl Audio 12W3v2-D2 Car Subwoofer

1 Answer

12W3V2-D4 ENCLOSURE


12W3v2-D4 sealed or ported enclosure use.
Sealed 1.25 ft3 23" x 14" x 10"
Ported 1.75 ft3 29" x 14" x 12.25" - Slot port size 1.375" x 12.5" x 23.75"
12W3v2-D4
Fc: 47.4 Hz F3: 41.3 Hz Qtc: 0.83 Recommended Port Tuning: 30.3 Hz

Maximum wattage: 600 watts per driver.

I hope this helps you, more info can be found at: http://mobile.jlaudio.com/pdfs/12W3v2_MAN.pdf

Jun 24, 2008 | Jl Audio 12W3 Car Subwoofer

2 Answers

12W3V2-D4 ENCLOSURE???


They need 1.4-1.7 cubic ft per sub(ported box) less if it is sealed but I wouldn't recommend that, it sounds like ****. Google "Re audio box calculator" and use it to adjust your dementions to your application

Jun 22, 2008 | Jl Audio 12W3 Car Subwoofer

1 Answer

Enclosure type


Sealed box and somewhat large if they are 12's I usually try to get 3 cubic feet overall internal dimensions and generally the inside dimensions will be 13" tall 32" wide and 13"-14" inches deep. with no divider and make sure the box is sealed. Personally I like to phase the speakers backwards. Gives the bass a little more rumble.

Jan 05, 2007 | Sony XS-L1200B Car Subwoofer

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