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JL Audio 10TW3-D4

Shallow-mount 10" subwoofer with dual 4-ohm voice coils

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Our take on the JL Audio 10TW3-D4

by John Pollard
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.

Bass for challenging spaces

If you've got a pickup truck, sports car, or you just need to haul a lot of stuff, then you know that adding some bass can be a challenge. That's why JL Audio built the TW3 Series 10TW3-D4 shallow-mount subwoofer. This super-thin 10" sub puts out big bass, yet only requires minimum air space, so you can use a much smaller enclosure. Now, you can have your bass and your space too.

JL Audio 10TW3-D4

Don't let this sub's low profile fool you, it's made for big bass.

JL Audio's amazing engineering

JL Audio used all their tricks to build a sub this slender without giving up performance. Its tough polypropylene cone won't flex under high power, and the large, durable rubber surround helps the cone move large amounts of air. The heavy-duty cast-alloy frame only stands 3-1/4" tall, but provides a stable home for this high-performance bass driver. For best results, you'll want to send this sub up to 400 watts RMS, and the dual 4-ohm voice coils make it a perfect match for a mono amplifier. 

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Highlights:

  • 10" subwoofer with dual 4-ohm voice coils
  • shallow-mount design with small airspace requirements
  • mica-filled polypropylene cone with rubber surround
  • cast alloy basket
  • top-mount depth: 3-1/4"
  • power range: 100-400 watts RMS
  • peak power handling: 800 watts
  • frequency response: 24-200 Hz
  • sensitivity: 82.1 dB
  • sealed box volume: 0.519 cubic feet
  • warranty: 1 year
  • Our 60-day money-back guarantee

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

Features and Specs
Size
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10 -inch
Impedance
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4 ohms
Cone Material
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Mica-filled IMPP
Surround Material
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Rubber
Ideal Sealed Box Volume (cubic feet)
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0.519
Ideal Ported Box Volume (cubic feet)
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N/A
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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Yes
Sensitivity
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82.1 dB at 1 watt
Frequency Response
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24 - 200 Hz
RMS Power Range (Watts)
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100-400
Peak Power Handling (Watts)
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800
Top Mount Depth (inches)
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3 1/4
Bottom Mount Depth (inches)
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N/A
Cutout Diameter or Length (inches)
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9 9/16
Vas (liters)
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19.82
Fs (Hz)
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32.3
Qts
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0.62
Xmax (millimeters)
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15.2
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

  • 10" Thin-Line subwoofer
  • Owner's manual
  • Voice coil connection warning

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

Thin-Line Design: JL Audio's patented thin-line woofer technology compresses the architecture of the 10TW3-D4 subwoofer and allows it to deliver great bass performance in tight space applications (less than 3-1/4" deep). Central to the technology is the Concentric Tube structure that supports the oversized voice coil and the suspension attachments. This permits placing the motor structure much further forward in the speaker than conventional designs, while maintaining excellent linear excursion capability. Equally important, the 10TW3-D4 is designed for extremely small enclosure applications; 0.519 ft³ is optimum.

Concentric Tube Suspension: JL Audio's patented Concentric Tube Suspension employs a molded structure which spans beyond the edge of the motor structure, supporting the spider on the outside of the motor's boundaries and the large diameter voice coil on the inside. The large voice coil permits the magnet to sit inside it, rather than surrounding the coil as is typical in most woofers. The concentric tube structure and the elimination of a conventional top-plate helps JL Audio place the motor higher up into the cone body's space to further compress depth, while still permitting excellent mechanical excursion.

Mica-Filled Polypropylene Woofer: The subwoofer features an injection-molded, mica-filled polypropylene cone woofer with a rubber surround for added durability, woofer excursion and bass response.

Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method of improving dynamic motor behavior. As a result of DMA optimization, the 10TW3-D4 motor remains linear over a long excursion range, and also maintains a stable fixed magnetic field in the gap over a wide power range. The result is 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.

Enclosure Compatibility

Recommended Sealed Box Volume: The sealed box size recommended by JL Audio is 0.519 ft³. A diagram is provided in the owner's manual for a sealed box with external dimensions of 16" W x 13-7/8" H x 6-1/2" D, assuming 3/4" thick material. (If you are using 5/8" thick materials, subtract 1/4" from each dimension.)

Shallow Mount Design: The JL Audio 10TW3-D4 requires a mounting depth of less than 3-1/4".

 
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JL Audio 10TW3-D4 Reviews

Average Customer Review:

19 people say:

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5 out of 5

JL 10"

Written By Joe, Menomonee Falls, WI on Saturday, September 13, 2014
Crutchfield Customer Review (What's this?)
 
Bought 2 and built a box with the provided measurements and couldn't be happier with the sound and fit of the box in my car. Highly recommend for anyone with limited space, but still want bumps.
Pros:
Very small box volume needed, yet sound awesome. Highly recommend
Cons:
Nothing
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5 out of 5

Love this!

Written By CT, Lincoln, NE on Tuesday, September 09, 2014
Crutchfield Customer Review (What's this?)
 
Installed just one in a Jeep Unlimited and one is all I need. Kicks almost as hard as 2 10 Kicker CVRs in my other car. Only have it halfway on the bass knob most of the time cuz full blast is too overwhelming with my stock mids. Will upgrade the mids to compensate. Overall I love it. Kicks hard and more importantly for me, sounds real clean. And looks great with the JL logo compared to the W3s without the logo.
Pros:
Clean sound, strong punch, looks great, built great
Cons:
Just a bit over-priced.
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5 out of 5

Great Sub

Written By Elrond, Wichita, KS on Saturday, August 30, 2014
Crutchfield Customer Review (What's this?)
 
Fantastic sub. Performance very well for the low power requirement. I'm only putting 200W to it and it hits nice.
Pros:
easy install, great terminals, very shallow
Cons:
expensive
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5 out of 5

JL has done it again

Written By Fordzilla06, CC, Tx on Saturday, August 02, 2014
Crutchfield Customer Review (What's this?)
 
JL is the best. This sub rocks, if you have a tight space, there is no other shallow mounted sub with this quality. Fits perfectly behind the seat of my 6.7l F250. Thumps hard with a 500w amp pushing it. Crisp, clear, clean bass just as expected from JL
Pros:
Quality construction, clean bass, great JL quality.
Cons:
None
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4 out of 5

Good Product

Written By JayW, Georgia on Thursday, July 31, 2014
Crutchfield Customer Review (What's this?)
 
Since I needed a shallow mount sub to fit underneath the back seat of a silverado, this sub adequately met my needs. Tight punchy bass rounds out many genres of music and all-in-all am impressed with what this sub packs in a relatively small package (requiring only 0.5 cf).
Pros:
Great sound quality, can get pretty loud but don't expect ear shattering.
Cons:
Sub was closer to 10.5" and needed to dremel out the box in order to ensure a proper fit. Lacking in low notes but definitely better than other shallow mounts.
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5 out of 5

Wow

Written By Tim K., California on Monday, July 28, 2014
Crutchfield Customer Review (What's this?)
 
All I can say is wow! I had been looking at upgrading the stereo in my Double Cab Tacoma for quite some time now. I probably spent the better part of 3 months trying to figure out what subs to go with. I saw these when I first started looking, but I was kind of taken back just because they were so much more expensive than other shallow mount subs. But since I found out I had a kid on the way I didn't want to do much modification to behind the seats so that I would lose the child seat tie downs. I almost scrapped the idea of upgrading entirely just because I thought there was no way that I could get quality bass out of a shallow mount sub. Boy was I wrong. These subs sound amazing. They aren't going to win any SPL competitions, but don't let the size fool you. These things can still hit some very deep lows. I have to say I am completely satisfied with my purchase. Glad I didn't go cheap just to save a few bucks.This is definitely a "You get what you pay for" product.
Pros:
Very versatile with how you can set them up. Very clean, suprisingly deep bass from a tiny package.
Cons:
I would say price, but I definitely feel this is a "You get what you pay for" product.
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5 out of 5

Great Upgrade

Written By Chris, Denver, CO on Saturday, June 21, 2014
Crutchfield Customer Review (What's this?)
 
I don't write many reviews but this speaker is worth mentioning. This was a replacement of a Rockford Fosgate subwoofer that failed after 6+ years. The diameter required a slightly larger opening in the custom box than the orignal speaker but a jigsaw fixed that easily. I don't have the depth available in the mount location for a standard subwoofer and this shallow mount was perfect. Overall a great speaker, sounds awesome, easy install, and better than what it replaced. Very impressed with the sound and thump of the shallow subwoofer in a fairly confined space. I'm pushing it with an Alpine MRV-M500 (which was a replacement last year for a previous model Alpine mono amp) and after a little tuning it sounds great playing heavy metal, rock and hair bands mostly. I would absolutely recommend it.
Pros:
Well built, shallow install depth, simple wiring instructions, large sound from a shallow design
Cons:
Didn't come with a grill. My application didn't need it anyway, but good to know if you do need one.
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5 out of 5

Love it

Written By Colin, Kennesaw, Ga on Sunday, April 27, 2014
Crutchfield Customer Review (What's this?)
 
Great sub and fit in the small place I needed it to
Pros:
Size
Cons:
Big ole jl on the front kinda ugly
1 out of 3 people found this helpful
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5 out of 5

10TW3

Written By Dan, North Carolina on Friday, April 25, 2014
Crutchfield Customer Review (What's this?)
 
Awesome product from JL. Highly recommend anything they offer.
Pros:
Small and compact design for smaller enclosures with a great sound.
Cons:
Wish I would have got one sooner. No complaints.
2 out of 2 people found this helpful
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5 out of 5

Blew me away...

Written By JasonH, Nashville TN on Friday, March 28, 2014
 
I hooked this beauty to a JBLgto501ez mono and needless to say I have a lot of rattles to take care of. This little sub will blow you away. No it is nothing on its own that is going to win a speaker completion with, but it is a bad little sub. I am a big fan of JBL and JL although this is the first JL I have ever owned, I have installed several. I originally bought a slim series JBL sub that unfortunately could not take the power of the GTO501ez. This sub is actually rated less rms than the JBL but can handle everything I have to throw at it. This thing sounds better than my 12" in a ported box. I do have this speaker in its recommended sealed box enclosure. if your tight on space I promise you will not be disappointed in this speaker. (FYI) This was installed in a 2007 Dodge Durango in its factory location, this did include a lot of fiberglass work but was able to keep the factory box and location. This is a family vehicle so it was not meant for serious bass although it is capable of producing it.
Pros:
JL built here in the USA and awesome sound quality. This thing can move air and rattles mirrors in a three row seven seat SUV if you wish.
Cons:
Not sure this is really a con. not for me at least but maybe for some. the over all cut out is bigger than normal 10s" but this is not your normal 10". Also the excursion once again is more than normal 10s"
3 out of 3 people found this helpful
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5 out of 5

Compact that kicks

Written By Space, no problem, Huntingburg, IN on Sunday, January 26, 2014
 
Tight on space no problem! I Replaced my 8" factory sub for this jewel in my Saturn sky, and there is no room for much in this car. Great for a small enclosure, I used factory enclosure as it was close to the recommend cubic feet. Paired it up with a jl xd700/5 and wired it for 2 ohm to push 300 watts into. It kicks like a mule. If you like clean tight base just follow installation instruction and you can tune it right in. I will buy again if the need be.
Pros:
Perfect for tight spots, clarity, kick
Cons:
None
3 out of 3 people found this helpful
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4 out of 5

JL Audio 10TW3-D4

Written By Anonymous, Orlando, Fl on Friday, November 08, 2013
Crutchfield Customer Review (What's this?)
 
Sound is good not great, but after all it is a shallow mount sub. Definitely makes my factory system sound a lot better though.
Pros:
Size, quality, box size needed is great for trucks
1 out of 2 people found this helpful
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4 out of 5

Jl sub

Written By Anonymous, Hawaii on Saturday, October 19, 2013
Crutchfield Customer Review (What's this?)
 
Not bad sound quality
Pros:
Built nice
Cons:
Kinda pricey
1 out of 4 people found this helpful
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5 out of 5

Excellent subwoofer!

Written By BJ Buckingham, Kasson, MN on Sunday, September 22, 2013
Crutchfield Customer Review (What's this?)
 
Shipped quickly and arrived in perfect condition. I have it in a sealed enclosure fitted for a Toyota FJ Cruiser and it sounds excellent! Clean, tight, & accurate for jazz and rock, but it pounds for some Eminem and Pitbull too. I'm powering it off the stock radio and an Alpine mono amp with 300 watts. But it is one of the largest 10" subs out there, so make sure it isn't too big for the hole in your box. I had to enlarge the opening by about half an inch to make it fit....but it was worth it!
Pros:
Fits small spaces, clean, tight, loud
Cons:
It is a large 10" sub that may not fit a lot of boxes without some minor modification.
4 out of 4 people found this helpful
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5 out of 5

Subwoofers

Written By Scott B, Jacksonville, Fl on Sunday, August 25, 2013
Crutchfield Customer Review (What's this?)
 
As All J L Products Have In The Past, The 10TW3 Subs Stomp Somthin Stupid and I Would Highly Recommend Them To Anyone Wanting A Sub With All The Body Trembling Lows and All The Punch Of A Boxing Glove To The Face. This Thin Compact Sub Is A Huge Factor In The Purchase Of This Product !!!!!!!!!!!!
Pros:
Small, Compact and Still Stomps Your Face In
Cons:
Nadda !!!!!!!!!!!!!!!!!!!!!!!!!!
2 out of 2 people found this helpful
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5 out of 5

As Advertised

Written By Dan S, State College, PA on Saturday, July 20, 2013
Crutchfield Customer Review (What's this?)
 
I'm running a single one of these behind the bench seat of my regular cab truck.

It's solid down to 40hz in only a half cubic ft of air space, rolling off quickly after that. Plugging the advertised specs into enclosure modeling software, it doesn't appear that making the enclosure larger (even much larger) results in any significant lower extension. So it does what it was designed for and does it extremely well. I may add a parametric EQ at some point and boost at 30hz, but I currently don't feel that I'm missing anything. It sounds way deeper than most of the "bass systems" I hear.

I'm only running 200w to this, so this review won't be about how it pounds (although it is impressive when playing a bass CD). The sound is clean and accurate. Not quite as perfect as a 10W3, but pretty close. Probably as good as it gets in this small amount of air space. Everything sounds as it should, whether it be a bass CD or an audiobook. I have it crossed over pretty low. The bass blends with the front components well and is truly non-directional. It can be felt as much as heard, but if your goal is something that pounds loud, buy 2 and run 350w to each.
Pros:
Works in extremely small enclosure. Sounds incredible. Solid craftsmanship, the frame is heavy and everything appears well made.
Cons:
Although mounting depth is shallow, the front part of the frame is thicker and sticks out from the front of the baffle about an inch. Add to that just over a half inch of excursion and the overall space required behind the seat isn't as small as the mounting depth would suggest. I should also note that due to the thickness of the mounting tabs, longer than usual screws were required to mount the subwoofer in the enclosure.
13 out of 13 people found this helpful
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5 out of 5

JL Audio 10TW3-D4

Written By Joe, Reno, NV on Wednesday, May 29, 2013
Crutchfield Customer Review (What's this?)
 
These are sick. I have three with 1200 rms to them.
1 out of 6 people found this helpful
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5 out of 5

great sub

Written By han, carlisle on Wednesday, May 15, 2013
Crutchfield Customer Review (What's this?)
 
Awesome subwoofer
Pros:
Look and sound great
Cons:
None
1 out of 8 people found this helpful
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4 out of 5

Great sub for any F150 Super Crew

Written By Devin, Columbus, Ga on Thursday, March 21, 2013
 
Did not buy it from Crutchfield. Everything else was. Have a local JL dealer here who got the sub early. Sub is a great fit especially in the small space under the rear sit. Bought one with a custom box. Hits clean and hard. Paired with JL XD 400/4 for the mids/highs and XD 600/1, couldn't be happier. A little on the pricey side, but you get what you pay for.
Pros:
Clean tight bass Size Quality
Cons:
None
10 out of 12 people found this helpful
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3 questions already asked

what is the best amp to push 2 of these 10" subs ? [ Matthew  Mar 19, 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  Mar 19, 2014 ]
How much space does this require when making a ported enclosure? [ Peter D  Feb 03, 2014 ]
1 answer
  • These are not recommended for ported enclosure. [ JOSE   Feb 03, 2014 ]
How much air space is needed for the sub? [ Joseph  Jan 13, 2014 ]
7 answers
  • JL Audio recommends 0.50 cu.ft. [ Warren   Jan 15, 2014 ]
  • The sub recommends to have 0.5 cubic foot in the specs, but I'm using a box with 1 cubic foot and it sounds amazing, so I would recommend nothing bigger than a 1 cubic foot box but no smaller than 0.5 cubic foot. [ JUSTIN   Jan 14, 2014 ]
  • JL recommends a sealed enclosure of 0.5 cubic feet net, meaning not including the 0.019 taken up by the driver. So total gross volume of 0.519 cubic feet. I tested slightly larger sealed enclosures in design software and there wasn't much benefit to going any larger, but if you're buying a premade box that is slightly larger (say 0.6), it will work just fine. JL does has no recommended ported designs for this subwoofer. [ DANNY   Jan 14, 2014 ]
  • Joseph, I am not sure if you are asking about how much space is needed to mount the speaker or how much internal volume is needed for the sub to function properly. Both of these questions can be answered from the JL Audio website (see specifications). The necessary depth for the enclosure in order to mount the speaker needs to be at least 3.25" in depth (more would be best). The internal volume for the enclosure needs to be at least .5 Cubic feet (or half a cubic foot). Good Luck!.. [ Luis   Jan 14, 2014 ]
  • That's great . I can max out at 6 inches .. so it leaves some room [ Joseph   Jan 14, 2014 ]
  • I HAAVE ABOUT 4 INCHES BETWEEN THE BACKSEAT AND THE SUB GRILL [ JEANETTA F   Jan 14, 2014 ]
  • Very little because it doesn't need it. I have a small sealed box with only about .6 cu/ft in my Toyota FJ Cruiser. I have a 500w Alpine amp feeding it and it absolutely pounds!! Super deep bass, accurate, and loud......what more could you ask? I would buy it again. [ BRANDON J   Jan 14, 2014 ]

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T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
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Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
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Dynamat Dynaliner One 54" x 32" sheet (1/8" thick)
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JL Audio SGR-10TW3 Grille for TW3 Series 10" subwoofer
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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 Square 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 spring clip connectors (for do-it-yourself box builders)
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S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire
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Pro.Fit Wire Worm Installation tool helps route wiring through tight spaces
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Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
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Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
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Autosound 2000 Disc One Low Frequency Test CD (Disc One)
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For a more in-depth review and enhanced detailed information on the JL Audio 10TW3-D4, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_13610TW3/JL-Audio-10TW3-D4.html ).