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JL Audio 12W3v3-4

W3v3 Series 12" 4-ohm subwoofer

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  • JL Audio 12W3v3-4

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Our take on the JL Audio 12W3v3-4

by Dominic Devito
JL Audio

What's a component sub and why would I want one?

A component sub is simply a speaker that's designed to reproduce bass once it's installed in a compatible enclosure. Think about the impact of a movie soundtrack in a big theater or even in your own home HDTV setup. A component sub can add the same kind of power to the music in your car. And a car sub is not all about the boom that you hear on a street corner (although that's cool too) - you can pair a component sub with your choice of enclosure to get bass just the way you like it, from tight and punchy to fat and loose. And once you experience music in your car with a well-tuned subwoofer, you'll never go back.

Remarkably realistic bass

JL Audio designed their W3v3 subwoofers to deliver powerful, accurate bass with a medium-power amplifier. Their extensive motor assembly research resulted in a design that ensures smooth, precise cone movement at any power level. Exclusive cooling features shunt heat away from the sub's internal motor structure for long term durability and reduced distortion. The W3v3 sub works well in a sealed or ported enclosure.

JL Audio W3v3 exploded view

Well-rounded performance

JL Audio W3v3 interior

The 12W3v3-4 subwoofer boasts a 12" mineral-filled polypropylene cone with a distinctive metallic JL Audio medallion. A patented design eases the stress felt by the rubber surround during cone movement, for increased reliability and consistent bass output. The removable, customizable trim ring accepts optional JL Audio grilles, and can be painted to enhance your installation.

See more info on this item

Highlights:

  • 12" 4-ohm subwoofer
  • mineral-filled polypropylene cone with nitrile-butylene rubber surround
  • power range: 100-500 watts RMS
  • peak power handling: 1,000 watts
  • frequency response: 22-200 Hz
  • sensitivity: 87.15 dB
  • top-mount depth: 6-5/8"
  • sealed box volume: 1.125 cubic feet
  • ported box volume: 1.75 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per speaker

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Size
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12 -inch
Impedance
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4 ohms
Cone Material
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Mineral-filled poly
Surround Material
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Rubber
Ideal Sealed Box Volume (cubic feet)
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1.125
Ideal Ported Box Volume (cubic feet)
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1.75
Port diameter (inches)
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N/A
Port length (inches)
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N/A
Free-Air
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No
Dual Voice Coil
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No
Sensitivity
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87.15 dB at 1 watt
Frequency Response
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22 - 200 Hz
RMS Power Range (Watts)
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100-500
Peak Power Handling (Watts)
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1000
Top Mount Depth (inches)
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6 5/8
Bottom Mount Depth (inches)
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N/A
Cutout Diameter or Length (inches)
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10 7/8
Vas (liters)
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80.54
Fs (Hz)
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26.72
Qts
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0.444
Xmax (millimeters)
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13
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Product Research
What's in the box?

Download owner's manual

  • 12" Subwoofer
  • Black plastic trim ring
  • Owner's Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Enclosure Compatibility

Features

Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method aimed at improving dynamic motor behavior. As a result of DMA optimization, W3v3 motors remain linear in motor force over a very long range of excursion, and also maintain a highly stable fixed magnetic field in the gap over a wide power range. The result is vastly reduced distortion, faithfully reproduced transients, and tight, clean, articulate bass.

Floating Cone Attachment Method (FCAM): JL Audio's patented FCAM technology is an innovative method of bonding the surround/cone assembly to the voice coil/spider assembly. This assembly technique ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.

Vented Reinforcement Collar (VRC): The Vented Reinforcement Collar is a composite structure that addresses two issues related to reliability. By reinforcing the critical junction between the cone, voice coil and spider, the VRC greatly reduces failures due to glue breakdown or material weaknesses. It does this by greatly increasing adhesive contact area and providing stress relief to the spider material at excursion extremes. the VRC also feature slots that facilitate air flow directly onto the voice coil windings to reduce thermal compression effects and enhances reliability.

Spider/Lead Wire Assembly: The W3v3 features a unique spider, coil and terminal subassembly which is assembled prior to installation in the speaker frame for optimum alignment and glue-joint integrity. The spider is insert-molded into a composite carrier tray which also incorporates the terminal assembly and lead wire strain relief features for enhanced reliability and optimal alignment of parts. The flying lead wires are carefully controlled and strain-relieved without resorting to woven-in lead wires, which can degrade spider performance.

Elevated Frame Cooling: The elevated frame design of the W3v3 delivers high-velocity air flow through slots directly above the top plate to the voice coil of the speaker. This not only enhances power handling, but also sound quality by minimizing dynamic parameter shifts and power compression.

Surround Stress Relief: By creating a radiused feature on the edge of the cone, stress is relieved from the surround material at maximum forward excursion, resulting in longer life and more consistent surround behavior.

Customizable Trim Ring: The woofer comes with a removable ring made of black ABS plastic which can be painted to match the installation theme and create a personalized look. You can purchase optional grille mesh inserts which are specifically designed to fit into the inner diameter of the trim ring.

Enclosure Compatibility

Recommended Sealed Box Volume: The sealed box size recommended by JL Audio is 1.125 cu/ft. A diagram is provided in the owner's manual for a sealed box with external dimensions of 23" W x 14" H x 9.25" D, assuming 3/4" thick material. (If you are using 5/8" thick materials, you should subtract 1/4" from each dimension.)

Recommended Ported Box Volume: The ported box size recommended by JL Audio is 1.75 cu/ft. A diagram is provided in the owner's manual for a sealed box with external dimensions of 29" W x 14" H x 12.625" D, assuming 3/4" thick material. (If you are using 5/8" thick materials, you should subtract 1/4" from each dimension.) A slot port is recommended with the following dimensions:

  • Slot Width=1.375"
  • Slot Height=12.5"
  • Slot Length=26.125" (a right angled port with a 13.5" extension)
 
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JL Audio 12W3v3-4 Reviews

Average Customer Review:

22 people say:

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5 out of 5

Buy! but, please read before buying

Written By john in illinois, champaign, illinois on Saturday, August 09, 2014
Crutchfield Customer Review (What's this?)
 
I read through some of these reviews and some people weren't getting good results . You have to match everything for them to sound excellent! Are u using a proper box and amp? These substances are tremendous. I was disappointed too when I first got them. I went through about 3 boxes. The bass waves were being cancelled by each other when I'd turn it up. Ihad a custom box made and it made these subs come alive! So be sure your subs have the right amp and box and u won't be disappointed! My amp is 1000w rms..my box was made by Dave the box guy. Do your research with boxes and amps and you will be pleased! Trust me when I tell you that if u have the wrong amp or box you won't get your money from these subs! Box and amp are everything!!!
Pros:
Great quality sound. With the right set up they get pretty low. They do hit hard
Cons:
I would like them to hit lower but it's not the subs fault because they're not rated below 22 Hz so it's really not a con per se
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5 out of 5

Overall Experience

Written By Anonymous, Medford, OR on Wednesday, April 09, 2014
Crutchfield Customer Review (What's this?)
 
If you want clean deep bass, get one of these in a sealed box. If you want it to be loud, add another in a a sealed box. The biggest mistake I see is under powering subs by people thinking there amp is pushing out 1200 watts. But if your sub/speaker is 4 ohm, you are looking at a few hundred watts rms from the amp, not the max 1200W. If your going to run these subs you must have a proper higher end amp to run one. I'm running a JL Audio JX1000/1D with just one of these subs in a sealed box. The bass is clean, clear, and it hits very hard. It's great for any type of music. Just because this amp has 1000 in the model doesn't mean you will get it. At 14.4 volts it says it will do 1000 watt output but only at 1 ohm. Seeing how only a handful of amps are capable of handling that I am looking at my setup. One 4 ohm woofer so that would be 500 watts rms for one woofer. if I had two subs at 4 ohms, that would be 750 watts from the amp if it was in a parallel circuit. Divide that by two for two subs for 375 watts for each sub. Even though having two subs is less power to them individually. Its louder since there is more surface area movement from the woofers. So long story short. Don't be selling these subs short just because your amplified setup is no where close to where it should be. A lower power amp with low power sub equals not bad quality. the same low powered amp with higher end sub that demands more power equals a huge let down.
Pros:
Response time for hitting each note. Sound Quality. Deep smooth ever lasting bass. Clean and clear. Bends well with mids and highs so you can't tell the bass is coming from a certain location. Not over powering but enough to give you deep rich quality low notes.
Cons:
You get what you pay for and this will help you achieve the near pure sound as it should be heard.
1 out of 1 people found this helpful
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4 out of 5

Great Mid-Priced Subwoofer

Written By JohnyC, Green Bay, WI on Friday, April 04, 2014
 
Had this sub powered by a Kenwood KAC-7202 until it was stolen, it was the best system I had of many. At the time I bought it because it was on sale and was tired of the big box store cheapo specials and remembered my friend having a 10w0 back high school that was really good. Please note, I had this set up only a few months before someone broke into my car and stole it so I did not rate build quality.
Pros:
smooth design, clear musical tones, strong bass
Cons:
at the high end for a budget oriented system, but you may only need one subwoofer.
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5 out of 5

Unbelievable SPL and SQ!

Written By Anonymous, Dallas tx on Friday, March 28, 2014
Crutchfield Customer Review (What's this?)
 
I am running two of these 4 ohm subs with a JL Audio XD 600/1 amp. I started with just one of these subs but upgraded to two very shortly after to get it a little louder and it made a HUGE difference. This is without a doubt the best setup I have ever had in my car. I have been through many different brands of amps and subs and JL Audio is top notch! They may not look like much but they hit HARD and extremely CLEAN! They are pretty pricey but you definitely get what you pay for with this sub!
Pros:
SPL and SQ
Cons:
Pricey but still worth it.
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5 out of 5

Submania

Written By coachts1, Granada Hills, CA on Tuesday, January 14, 2014
Crutchfield Customer Review (What's this?)
 
The best quality sub I have heard in an automobile. I installed double 12 alpines in my cousins car and it rocked. I installed this sub in my sons hummer in a single box. It blows away the double alpine in sound quality. Yes it rattles your seat and you can feel it in the back of you neck, but the big difference is in the smooth transition between every bass note and sound. I have two def tech subs in my house. This sounds better than those.
Pros:
High wattage capacity Quality is excellent True frequency response without distortion
Cons:
none
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4 out of 5

Superb

Written By Dom, Toms River on Wednesday, November 07, 2012
Crutchfield Customer Review (What's this?)
 
I bought one of these as an open box item. Anyone who says the sound quality of this sub is less than outstanding is using it wrong, it's that simple. I have one sub in a 1.25 cubic foot sealed box, in the trunk of a sedan, firing through the cargo opening between the rear seats, crossed over at 22hz to 64hz with 24db slopes, powered with an Alpine 300W M500 mono amp. Front stage is a DLS Gothia 6.3, 45hz and up powered by two Alpine F300's. Processing is an Alpine H800. The sub kicks butt. It is as tight and accurate as just about anything i've heard in this price range. And it has a super cool cone material - it looks awesome pumping away through the cargo hole. I'm glad i didn't sacrafice the room for two of them because it's not needed. This is a high end woofer. If you don't put it in a high end system and power it and tune it properly, you won't experience the full benefit.
Pros:
looks awesome. sound is super tight.
Cons:
give it a week to break in. after a week it sounded way tighter.
5 out of 5 people found this helpful
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5 out of 5

Subs Hit Hard!!!!

Written By Bryan, Springfield, MA on Saturday, July 07, 2012
Crutchfield Customer Review (What's this?)
 
These subs hit hard and the quality of sound is outstanding.
Cons:
None
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5 out of 5

jl wv3v3-4

Written By WAHS, Pittsburgh, Pa on Friday, March 16, 2012
 
These subs slam! I bought two of these in a ported box running at 675 watts rms at being powered by an infinity reference series amplifier.
Pros:
These sound great with any music at the proper tuning my rear window flexes Cant turn them up all the way they are to loud for me! They provide the extra punch to rock songs and rap it makes my trunk bounce
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1 out of 5

save your money

Written By disgusted, columbus ohio on Sunday, August 14, 2011
 
i went from a w0 10' to 12'w3v3 and its been the worst mistake of my life i cannont beleive how weak it is and how bad it sounds i cannont phase it to get a clear sound from it and refuses to pound at all overall this was a waste of my time/money/and excitement i hate this speaker and now jl audio and i was there biggest fan
1 out of 71 people found this helpful
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5 out of 5

Best IN the West!

Written By Franktank, Austin TX on Monday, April 25, 2011
 
I just bought these subs and let me tell you glad I did! great sound and really pound. I switched from the rockford fosgate p3's. If your looking for quality sound....well you found it! JL all the way!
8 out of 9 people found this helpful
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5 out of 5

POW

Written By Kip, Wolf Lake on Thursday, December 02, 2010
 
I just Bought My Second One,

These Subs are the absolute best 12 in their price range, Check That......Subs that cost twice as much will be hard pressed to keep up with these super tight monsters.
5 out of 6 people found this helpful
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5 out of 5

great sound

Written By mike, concord, nc on Sunday, October 24, 2010
 
this is amazing sub i have one hook up to a amp bridge sitting in a 99 bucik regal. it hits so hard that i got the bass knob on 0. sold on JL never buy any thing beside JL from now on.
7 out of 7 people found this helpful
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5 out of 5

Impressed!!

Written By Antonio, Greenville, IL on Wednesday, August 25, 2010
Crutchfield Customer Review (What's this?)
 
I have two of these installed in a modified box under the back seat of a 2005 Dodge Ram Quad cab, each woofer has about .64 cubic feet and was suggested to have about .68. They are replacing 2 Kenwood shallow mounts. Let me tell you these things sound great. They sound better than the Kenwoods and they aren't even broken in yet. I can't wait until they are broke in. These are a good buy and I am glad I bought them.
5 out of 5 people found this helpful
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5 out of 5

Exceptional Subwoofer

Written By Devin, Pocatello, ID on Saturday, August 14, 2010
 
This subwoofer is amazing. The only time I have had one 12" woofer be much louder than this one is when I ran a 6 cu ft box ported at 45 hz with 1,200 watt rms amp, a deep cycle battery up front and in the the trunk, and 3 1 faret caps. That was 7 years ago, and it was much louder than this. But its the only time I have had 1 12 get really to much louder. HERE'S THE KEY POINT, I have done louder with 1 12 in my past, a few times, and some that where not strictly for competition, so they sounded ok, but I HAVE NEVER HAD ANY SINGLE 12' WOOFER GET SO LOUD, AND STAY SO CLEAN! This sub sounds excellent. Definitely go with 1, build the right box, and give it the power it deserves. You'll spend less and be happier (I think) than if you go with two and don't power them or box them right. JL makes a box for this, and it sounds great! In the trunk of a car, in JL's box, louder (and just as clean or cleaner) than a buddy running 2 Fosgate P1S412 in a ported box in a new Ford SUV off of a P300-1. I run my JL with a T400-2
3 out of 7 people found this helpful
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5 out of 5

Good Sound Nice subwoofer

Written By dirkdiggler, Saint Augustine, FL on Monday, June 21, 2010
 
These subwoofers are great I would highly recommend this subwoofer and JL audio in general they stand by their products and just overall are a good buy. Of course your going to pay a little more but the sound Im getting from one of these powered by a 500 watt JL audio amp is incredible.
3 out of 3 people found this helpful
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5 out of 5

Speachless

Written By Robert, Florida on Thursday, June 03, 2010
Crutchfield Customer Review (What's this?)
 
I bought these to replace a pair of RF HE2 12's and all I can say is WOW!! I put them in the custom sealed box i built for my tundra and they aren't even broken in yet and they are amazing. The are so efficiant that I could turn my gains down and the amp is drawing less power so my Infinity mids and highs sound better. I turned the gains up on my crossover up for the mids and highs and it is so much louder and more crisp. The best thing is they still keep up with the infinitys. I'm running them at around 500 rms each and the infinity's @ 100watts rms each with a 5 farad cap and it is awsome. I've always been true to rockford Fosgate but not any more. These make any system sound perfect. The lows sound great and quick beats are sooo tight.They sound great with any music.
3 out of 3 people found this helpful
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5 out of 5

Very Tight and Articulate!

Written By 2fast4thelaw, Denver Co on Monday, June 29, 2009
 
I have one of these subs in a 1.5 cu ft sealed enclosure powered by a JL
Audio 1/250 slash amp in my 2005 Nissan 350Z. This is the best sounding
subwoofer I have ever heard. I wasnt sure 250 watts was going to
be enough but I was dead wrong. It hits so hard and so tight it put a huge
smile on my face. My friends told me that a 12" sub would sound loose
anjd heavy but they ate those words when they heard it. I will never use
anything smaller than a 12 again! I previously had a Type-R 10 in it on the
same amp and it sounded great but it just wasnt enough. This sub was a
huge upgrade and the difference flat blew me away. It was three times as
loud and hit 3 times harder. It gave a whole new meaning to SQ. I have
never heard a big subwoofer hit so fast and tight! It definitly likes a lot of
air space but its very efficient!
7 out of 7 people found this helpful
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5 out of 5

excellent sound quality

Written By encryptor, indiana on Sunday, March 29, 2009
 
i have this as well as several other subs. These are not the loudest out there and many experts say that as well, but these are some of the most accurate subs on the market and they are very durable and long lasting. They are also under rated which JL publically admitted. these can handle 1000 watts easily. This sub has a very, very slight "flutter" noise to it compared to its cheaper cousin the W1v2. its not too noticable and cant find a cause.

their not the prettiest subs to look at but are very well engineered. Like any sub, the real secret is in your install setup and the box its in, not the sub itself. dont just put this in any q logic box either, they are too universal and accomodate mediocrocity from all subs rather than tailor made for each one. but buy/build a proper box as recommended by JL be it sealed or ported since thats the size the sub specs will require for best sound. stuff very loosely with poly fill to smooth out the bass and less distortion.

If going sealed, use vinyl rubber weather seal around the lip of the sub to guarantee air tight fit. All edges inside box must be sealed. A proper air tight sub when pressed will be very firm and retract instantly. If it sinks or retracts slowly, then you have an air leak somewhere. I coat inside of my boxes with truck bed liner and use weather sealing you can get from any hardware store. Many people in general buy cheap wires, an over-rated amp and a q logic box and think its good cause they dont know better.
11 out of 12 people found this helpful
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5 out of 5

Mad.. Then Happy

Written By James, Illinois on Saturday, July 12, 2008
 
Well, before this sub i had a 10 in kicker comp vr... i decided to be cheap and instead of buying or building a box that is meant for a 12in i just cut the hole bigger in the box that housed the 10in.. I was a little ticked at first because the w3 wouldnt hit the lows the same way the kicker comp vr did..

However. yesterday I got a new box for the w3.. a q-logic bandpass box.. much happier with this sub now. turned the center frequency
down to 23 on the jl 500/1v2 amp and it pounds hard.. cant even see clearly out of the rearview mirror while driving.

If you do get this sub i would suggest getting a bandpass box.. ive heard it in a ported and a sealed and the bandpass by far sounds much better
4 out of 9 people found this helpful
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4 out of 5

real loud not real deep

Written By Derick, pittsburgh, pa on Tuesday, April 15, 2008
 
I have 2 of these subs in a sealed enclosure, each receives 250+ watts apiece. One from the sub channel of a 500/5 and the other from a 250/1. These are loud subs, they got me a ticket but they aren't super deep, hence the 4 of 5 rating. These definitely rattle the mirrors but won't jiggle your innards. I will try a custom vented enclosure in the future to see what these are really capable of.
4 out of 12 people found this helpful
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5 out of 5

great sub

Written By Jeff, East Hampton CT on Wednesday, March 05, 2008
Crutchfield Customer Review (What's this?)
 
I installed this JL w3v3 in my 2001 z24 and it sounds great. I only have a small amp and only one 12 sub, and it hits very hard for only one. Great buy
7 out of 7 people found this helpful
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5 out of 5

Great Subs for price

Written By Nick, Baltimore, MD on Saturday, October 27, 2007
 
I have 2 12W3V3 subs in a sealed box pushed by Kenwood KAC-8103D sounds great. Very accurate, deep, clean bass. I got them hooked up in a 93' T-bird, you can hear me comin blocks away. I don't even have the bass boost on that high. For the price, these are great. I lookin to upgrade to 12w6 soon. I love JL Audio!
26 out of 27 people found this helpful
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2 questions already asked

Should I get vented or sealed box for this? It's going in a trunk of a MINI Cooper. Thanks. [ Craig  Jul 10, 2014 ]
1 answer
  • I forwarded your question to an Advisor and they responded with the following: The JL Audio 12W3v3-4 can work in either a ported or sealed box. The type of box you use is based on what you're looking for in terms of sound quality. A ported box is going to give you deeper, louder bass while a sealed box provides more of a tight, accurate bass response. In general ported boxes do need to be larger, so if you're limited in terms of space you may want to go with a sealed box! If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy Staff  Jul 11, 2014 ]
What correct amplifier needed for these type of speakers? [ Diamond  Jul 01, 2014 ]
1 answer
  • Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system. [ Krissy Staff  Jul 01, 2014 ]

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Polyester Fiber Stuffing Make your subwoofer think it's in a bigger box (1-pound pack)
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Metra Speaker Terminal Round terminal cup with binding post connectors (for do-it-yourself box builders)
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Metra Speaker Terminal Round terminal cup with spring clip connectors (for do-it-yourself box builders)
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Metra Speaker Terminal Square terminal cup with binding post connectors (for do-it-yourself box builders)
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Metra Speaker Terminal Square terminal cup with spring clip connectors (for do-it-yourself box builders)
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3 Year Protection Plan
3 Year Protection Plan
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For a more in-depth review and enhanced detailed information on the JL Audio 12W3v3-4, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_13612W3V34/JL-Audio-12W3v3-4.html ).