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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I cant get my jl audio w6 10s to give off much bass with the jl audio 500/1 amp


here is a manual for your subwoofers: http://mobile.jlaudio.com/pdfs/8-12W6_BDS.pdf

use the wiring diagram for 1.5? (1.5ohm) with 2 speakers. the diagram for 3 speakers will not work, because it would bring the load down to 1 ohm, and the amp cannot go below 1.5 ohm.

to set up the amp:

under "preamp output section", on the "output mode" switch, select "amp filter"

to set up the levels: start with the amp gain pretty far down- with the input voltage on low for line level outputs from the deck, and on high for speaker outputs from the deck. now turn your cd deck as far up as it will go until it distorts, then turn the cd deck down to just where it stops distorting. now, you can start to turn up the gain on the amp.

on the filters, youll prolly want the cutoff filter around 100hz @ 24db slope. start with the infrasonic filters off, but, if you do get into them, try centering between 30 and 60hz on either, and, possibly dropping the cutoff filter to 80hz.

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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

2 Answers

I want to make my own speaker box for a 12w7 jl


you should be able to get the speaker specifications from JL's website. There will likely be a range of box size, for example 0.75 - 1.1 cubic feet. You have to take into account how much power you are giving them as well. Usually with a stronger amp you can use a smaller box as the backpressure will keep from overexcursion but produce a stronger hit. Bigger box will produce lower notes (to a point). Is your Integra a hatchback? If so then you don't have to worry about taking up too much trunk room with the box. (if you fill half your trunk with a sealed box, it can start to behave like a bandpass enclosure, albeit without a tuned port). Also, use stuffing to get deeper/better response out of a sealed enclosure (unless specs say no). For the size, unless you're a whiz, you'll have to take your best guess. I would stay away from the extremes of the range, or if you get a specific volume then be within .1 cubic feet. Also, remember that the sub takes up some of the volume, so pay attention whether the volume spec includes the subwoofer. You should use 3/4" MDF for the box (minimum), so when figuring dimensions, subtract 1.5" from each side's external measurement to get the inside volume. Typically the width and height are determined by the car, then you calculate the volume to see how deep to make the box. Especially for a sub this badass, put each in it's own chamber, if not its own box. This means if it's in one box, there should be a panel in the middle dividing it into two halves. Seal all your seams/corners with silicone caulk or liquid nails. Use wood glue and small nails along all joints. The wood glue will be stronger than the nails once it's dry.

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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

2 Answers

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


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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

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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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