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JL Audio's top-of-the-line subwoofer

JL Audio's 30-plus years of research into car audio design has produced the legendary W7 subwoofer, and you'll hear that engineering in every note. JL Audio applies its advanced technologies separately to each W7 subwoofer, so each size sub is a unique design with its own motor and suspension system. You'll hear smooth, audiophile-quality bass output, even at extreme levels.

Exploded view

Advanced technology for superior sound

W7 subs feature six different patented technologies which give them their edge:

  • W-Cone™: a dish-shaped outer cone is supported by a second W-shaped inner cone attached to the the sub's voice coil structure. The light mineral-filled polypropylene cones respond rapidly for accurate, distortion-free bass without unwanted coloration.

  • OverRoll surround
  • OverRoll™: the oversized polyether foam surround extends over the edge of the mounting flange for more bass output without sacrificing linearity.

  • Floating Cone Attach Method
  • Floating Cone Attach Method (FCAM™): cone-bonding technology keeps the voice coil centered during long excursion.

  • Spider attachment
  • Plateau-reinforced spider attachment: a collar on the voice coil eases stress on the spider for extended excursion and improved reliability.

  • Elevated frame cooling and pole piece
  • Elevated frame cooling and cross-drilled pole-piece: cone movement pumps air through vents in the frame and machined holes in the pole piece, keeping the voice coil cool.

Reliable performance and accurate response

JL Audio designed the 3-ohm 10" W7 subwoofer to maintain linear motion during extreme cone travel, so you get a high-performance sub that's incredibly reliable. You'll find a strong cast-alloy basket and ultra-long voice coil among many impressive features which help this sub deliver profound, natural, and lifelike bass. This 3-ohm sub should behave similarly to a 4-ohm subwoofer in most power applications; call 1-888-955-6000 if you have further questions on powering your W7 system.

Product Highlights:

  • 10" 3-ohm subwoofer
  • polypropylene W-Cone with polyester foam surround
  • solid cast-alloy basket
  • power range: 250-750 watts RMS
  • peak power handling: 1,500 watts
  • frequency response: 20-250 Hz
  • sensitivity: 84.3 dB
  • top-mount depth: 8-1/8"
  • sealed box volume: 1.25 cubic feet
  • ported box volume: 1.5 cubic feet
  • Recommended Q-Logic Box Type: 2, 3
  • warranty: 1 year
  • Our 60-day money-back guarantee

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.

JL Audio 10W7-3 Reviews

Average Customer Review:

10 Reviews

surround factor

Written by: wendell f from hawaii on November 27, 2011

  • Not Rated
    "Coolness Factor"
  • Build Quality
  • Ease of Use
  • Sound Quality
  • Value

great sub , they should change the material of the surround to last long..everything else on the sub is still like new, but the surround is where the problem is.if you do ship it back to dealer it will cost alot you'll be better off buying a brand new sub instead.....i'll buy a new w7 if they change the material of the surround ..

Pros: this sub delivers hard core deep excursions that vibrates your whole body.

Cons: the surround does not last long where heat is cracked and started to fall apart...

Does anything you ask of it

Written by: Alstar250 from Vegas on August 13, 2011

This sub is simply amazing. There is so much talk these days about all of the new subwoofer companies being better than JL at a fraction of the cost, but if you did a little research, they are all just regurgitations of generic products. This sub uses custom tooled baskets and foam surrounds that give you the best of both worlds, long excursion capability while maintaining a large piston area (hence the lack of a visible mounting flange). People say the foam is weak, and yes it is probably the weakest part of the sub, but NO ONE spends as much time in R&D than JL and foam was chosen for the reason stated above. And they have released a re-foam kit that is easy to do several years down the road when it becomes necessary.

Some say this is a SPL sub, but SPL vs SQ is as much (or more) a product of install and alignment than actual speaker design. Put any "SQ" sub in a pre-fab box ported enclosure and expect a ton of output of loose, muddy bass that isn't accurate throughout the reference range. In a properly built enclosure, or in a properly sized sealed enclosure, the SQ of the W7 is wonderful.



Amazing Subs

Written by: Alex from Southern Utah on February 9, 2011

The first system I ever put in a car right when I turned 16 consisted of this 10" JL W7 in JL's "High Output" box and at first a JL 500W amp before I moved to a Rockford 750W amp. The combination of the W7 and JL's special built high output box is still the loudest system I've ever personally heard. I entered an "SPL competition" at a local car audio shop and was officially metered at 160 db's (back then I remember reading the loudest system on the planet was pushing 170 something). If I drove through a parking lot, I would set off almost every single car alarm I drove by. I'd let other kids sit in the passenger seat at school and people would line up to feel the heart attack inducing bass. It didn't just provide bass, it shook you at your core. I'll admit straight up that the biggest reason I got SUCH intense performance from this combo was because it was in a GMC Sonoma, literally sitting directly behind me with nothing but air separating us, but you still have to give a measly 10" sub credit for pushing 160 db's. I pushed this sub well beyond where it should have been pushed EVERY SINGLE DAY and it NEVER let up. I literally NEVER had a problem with this sub, the only reason I ever sold it was because I was genuinely worried about hearing loss. I'll forever be in awe of JL's W7 line after that experience in high school.



only last 5 years

Written by: Carlos from Miami, FL on January 8, 2011

Sounds ok more SPL that SQuality. What ticked me off is the Polyester foam surround material ages quick, degrades and breaks apart leaving the woofer cone unsuspended. Material quality does not last. Got Focal on the front with Butyl rubber and it holds up great. Not worth the price for it to degrade like this. Stay away from poly ester foam surround speakers, the material does not hold up to mobile car application where heat affects it.



The best sub out there period!!

Written by: JohnY from CT on September 2, 2010

JL subs,amps,speakers etc are the best out there. And there technical support is top notch. You get what you pay for!!!!! If you can afford JL you wont be disappointed!!



Jl w7 10"

Written by: jesse from Ca on August 8, 2010

bought this to replace a blown 10 with aluminum coils and was very disappointed..
one for being twice the price of my sub didn't sound nearly as good or hit as hard.
just looks nice
don't recommend it




Written by: N8 from EAGLEMOUNTAIN, UTAH on March 25, 2009




Amazing Sub

Written by: Sean from Richmond, VA on March 11, 2009

i have this pushed by a JL hd750(LP xover of 80hz at 12db/octave infrasonic filter off) and it's absolutely amazing, i know i've yet to fully tap into the potential of the 10w7/hd750 combo but WOW, go sealed box or just don't bother, everyone who knows knows a Properly Powered sealed box is the only way to go.




Written by: no from McQueeney, TX on November 20, 2008

Simply amazing... i got this sub and it still hits hard. i have it running off a 600/1 amp and it had rattled off my center consul and my front consul.. i have set off two cars alarms with a single sub.. i have the second best system in the school beating 3 diff. people that have 2 kicker 12's in their car. An amazing buy worth the money.



JL Audio 10W7-3

Written by: Jordan from Boston, MA on December 2, 2007

Hands down this is the best sub you can buy. Its expensive, but you get what you pay for. This hits substantially harder than my last pair of Kicker 10s and 12 before that. Play it as loud as it goes and it still sounds great. I have it in a ported box, exactly to JL specs and powered by a JL 500/1 Slash series amp. When its up 2/3 volume, it rattles change in the front seat. When its up all the way, you can feel it every where. It will set off car alarms every now and then. I expected a lot from it, being the flagship model from the premier name in car audio, and it exceeded my expectations.



Hands-on research

What's in the box?

Download owner's manual

  • 10" Single voice coil subwoofer with a silver metal clamp ring and a stainless steel O-ring attached to a MDF baffle board with 12 Phillips-head screws
  • Owner's Manual
  • JL Audio Marine Products catalog
  • JL Audio Home Products catalog

Product Research

Enclosure Compatibility


W-Cone: The JL Audio W7 subwoofer utilizes a W-Cone design, a unit-body cone assembly, that delivers astonishing cone stiffness with minimal mass. The shape also provides incredible torsional rigidity, which is critical to maintaining voice coil alignment at the suspension limits. In order to gain maximum stiffness, two lightweight mineral-filled polypropylene skins are bonded together at the perimeter and the center of the assembly. The lower skin's cross-section is shaped like a "W", and provides incredible rigidity when bonded to the dished upper skin.

OverRoll Surround: OverRoll Surround technology allows JL Audio to make full use of the entire footprint of the speaker, placing the surround further to the outside than in a conventional woofer. This means that W7 subwoofer can use a large roll for all its benefits without sacrificing cone area. By maximizing the effective piston/total footprint ratio, the W7 subwoofer can deliver more output for a given excursion and outside frame diameter. This means that the prodigious excursion advantage of the W7 can be put to full use enhancing output, rather than making up for lost piston area. This technology also provides a geometry advantage on the outside edge of the surround roll, allowing for more linear operation. A further benefit is that the mounting holes are inherently sealed by the surround, resulting in an improved box seal.

Ultra-Long Voice Coil: The W7 subwoofer features an ultra-long voice coil to allow extreme linear excursion, phenomenal power handling and control. The massive surface area of these coils is excellent for heat dissipation, while the huge winding height provides the necessary motivational force to achieve the huge excursion of the W7 designs. Considering their size, the W7 voice coils are extremely light in weight. The W7 uses aluminum-alloy wire (instead of conventional copper) and a specific winding method to achieve JL Audio's desired electrical properties. The light weight of the coils helps keep the overall moving mass down at manageable levels, which is extremely important for efficiency and sound quality reasons.

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.

Dynamic Motor Analysis (DMA): DMA is JL Audio's proprietary method aimed at improving dynamic motor behavior. As a result of DMA optimization, W7 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.

Massive Forced Air Cooled: The elevated frame design of the W7 delivers cool air 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.

Radial Cross-Drilled Pole Piece: This innovative venting system greatly enhances thermal dissipation and power handling by directing air flow onto the voice coil former and works in conjunction with the Elevated Frame cooling technology to effectively remove heat from the voice coil. This improves power handling and reduces power compression effects, leading to more linear performance.

Progressive-Roll Spider: The large, progressive-roll spider provides precise control and motor/voice coil alignment without limiting excursion prematurely.

Plateau-Reinforced Spider Attachment: The lower reinforcement collar, attached to the voice coil former of the W7, incorporates a plateau design dedicated to relieving material stress and providing a solid attachment surface for the inner edge of the spider.  The plateau of the reinforcement collar provides excellent contact area for adhesive therefore creating an incredibly strong bond at a critical point within the driver.

Co-Extruded Double Lead Wires: The extruded casing and carefully engineered attachments ensure controlled lead-wire behavior under the most extreme excursion demands. Two conductors are used per connection for ample current carrying capability.

Enclosure Compatibility

Recommended Sealed Box Volume: The sealed box size recommended by JL Audio is 1.25 cu/ft. A diagram is provided in the owner's manual for a sealed box with external dimensions of 15.5" W x 14" H x 15" D, assuming 3/4" thick material for the top, bottom and sides of the box and 1" thick material for the front baffle board. (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 1.5 cu/ft. A diagram is provided in the owner's manual for a sealed box with external dimensions of 23.375" W x 13.5" H x 14.5" D, assuming 3/4" thick material for the top, bottom and sides of the box and 1" thick material for the front baffle board. (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 = 1.5"
  • Slot Height = 12.0"
  • Slot Length = 22.5" (a right angled port with a 7.25" extension)

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 verify what’s in the box, 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.