Question about Jl Audio 15W3-D4 Car Subwoofer

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JL Auido 15W3-D4 subwoofer problem

My son's sub was cutting in and out for a couple of weeks and now it won't work at all. Only one side (coil) is hooked up, is it possible the the other side could work? I'm also wondering if it could be a bad ground? He has the truck up at college right now so I cant check the ground. Any help would be appreciated.

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Sounds like it was wired up wrong. If the ohm load is not correct to the amplifiers specs, it will cause the amp to go into protect mode. Eventually it will go out completly if the proble is not corrected. Try a test speaker on the amp and see if that is the problem or take it to a professional.

Posted on Oct 27, 2008

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What is the size of the box


here you go. good luck :)

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Oct 06, 2013 | Jl Audio 15W3-D4 Car Subwoofer

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I got a 15w3-d4 sub and i cant get them to have any sound come out at 1 ohm and i have a 1ohm amp can you help me? the subs are a little older cuzz it has the - and + twice in one side and then twwice on...


The subwoofer is a dual voice coil sub. Each of those (+) and (-) goes to a voice coil. The sub can only be wired down to a 2 or 8 ohm load. For 2 ohm (which it seems like you want, so you can get the most out of your amp), you wire them in parrallel. Connect the (+) of VC1 and the (+) of VC2 to the (+) of your amp (I am assuming this is a monoblock amp), then connect the (-) of VC1 to the (-) of VC2 to the (-) of your amp. If your your amp is 2 channel, you can bridge them at the amp. (+) of one side to (-) of the other side. Series creates an 8 ohm load. (+) of amp to (+) of VC1 then (-) of VC1 to (+) of VC2, then (-) of VC2 to (-) of amp.

Feb 03, 2011 | Jl Audio 15W3-D4 Car Subwoofer

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

Where can I repair my W3 speaker in los angeles area


try your local JL audio dealer, sure it's in your yellow pages

May 10, 2010 | Jl Audio 15W3-D4 Car Subwoofer

1 Answer

WHERE CAN I REPAIR MY W3 SPEAKER IN LOS ANGELES AREA


I don't see your brand but it near your area
Orange County Speakers
hit the link and get more info. You can easily use your search feature of your browser too.

Apr 17, 2010 | Jl Audio 15W3-D4 Car Subwoofer

1 Answer

How do i replace a duel voice coil in my d4 jl subs


You will have to find a repair shop in your area who can do a "recoil" for you

Apr 13, 2010 | Jl Audio 10W7 Car Subwoofer

1 Answer

Who to wire JL audio 12w6 to its max


Hello shermalestuc,

The JL Audio 12w6 v2-D4 has dual 4 ohm voice coils that can be wired for either a final load to the amp of 2 ohms (parallel) or 8 ohms (series).

If your amp is 2 ohm stable, the best power solution for a single sub is to use the parallel configuration, both positives and both negatives together and then to the amp.

Nov 08, 2009 | Jl Audio 12W6 Car Subwoofer

2 Answers

Is a 15 w3 d-4 better then a jl audio w3-d2


Hello,

All of the JL W3 subwoofers are essentially the same. The "d2" and "d4" suffix refers to the voice coil configuration. "d2" = dual two ohm coils, "d4" = dual four ohm coils. Depending on the number of subwoofers in your system and the amplifier(s) you are using to power them, one or the other of the configurations may be "better".

Generally, you want to have the load on your amp to have the lowest possible impedance consistent with the amps capability to operate properly with that load. It's normally referred to as "impedance matching". Greater power (watts) is produced, and louder sound, when the amp can deliver power at a lower impedance.

If your amp is only capable of supplying power at 4 ohms, you want to make sure that the configuration of your sub(s) represents a 4-ohm load. If the load is higher, say 8 ohms, then your amp can only deliver about half the power of which it is capable. It would be OK to run them a 8 ohms, but they would not be as loud. On the other hand, if the load was lower, say 2 ohms, your amplifier would soon overheat and go into protect mode.

So the trick is to first decide on how many subs you want. Then choose an amp/sub combination that "matches".

The DVC or dual voice coils just gives you more options in selecting and configuring. Say you want 2 subs and you are going with the 15w3 d-2. Your amp is the JL Audio G-MAX monoblock. The amp puts out 1200Wx1 Chan. at 2 ohms or 600Wx1 Chan. at 4 ohms. You would wire both of your subs voice coils in series making each sub 4 ohms, then wire the 2 subs in parallel to your amp making the final load 2 ohms, the best "match" for your amp.

Mar 29, 2009 | Jl Audio 15W3-D4 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

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