JL Audio 6W3V3-4 | 150W 6.5" Single 4-Ohm Car Subwoofer

JL Audio 6W3V3-4

150W RMS 6.5" W3v3 Series Single 4-Ohm Subwoofer

150W RMS 6.5" W3v3 Series Single 4-Ohm Subwoofer

• Sensitivity: 80.49 dB
• Mounting depth: 4.25 "
• Injection-molded, mineral-filled polypropylene cone
• Nitrile butadiene rubber surround
•Customization trim ring
• Floating Cone Attach Method
• DMA Optimized Motor


List price $265.98
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JL Audio 6W3V3-4

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JL Audio W3v3 Series Subwoofer Driver
JL Audio W3v3 Series Subwoofer Driver

Easily the best selling subwoofer driver, next to the W6v3, the JL Audio W3v3 provides phenomenal performance at moderate power levels with superb sound quality. The W3 series is in its 3rd iteration, embodying the series' pursuit for providing outstanding output and world-class sound quality. This is accomplished by utilizing a whole suite of advanced technologies originally developed for JL Audio's flagship W7. An Elevated Frame Cooling design helps in delivering enhanced power handling and sound quality. The DMA-optimized, long linear excursion capability minimizes distortion and increases output, while multiple patented technologies enhance performance and reliability. Such advances make the v3's the best sounding, most reliable W3's yet.

Although the W3v3 Subwoofer can be driven with as little as 50 Watts, for best audio performance it is recommended to run an amplifier capable of between 100 - 150 Watts of continuous power per driver, like the JL Audio JX360/2 (per channel, NOT bridged). In addition, these subwoofers are optimized to operate in either a ported or sealed enclosure, needing only 0.15 cubic feet of air space in a sealed box and 0.25 cubic feet in a ported/vented enclosure. (Specific dimensions and figures can be found in the user manual, linked further below.)

Like many other high-quality JL Audio products, all W3v3 subwoofers are built in JL Audio's Miramar, Florida factory, with extreme precision and top-notch build quality. Its this attention to detail that delivers the JL Audio quality and performance we have all become accustomed to.

JL Audio Patented Cooling Technology

JL Audio's patented Elevated Frame Cooling design delivers cool air into the heart of the subwoofer in ways no other manufacture's driver can. Purpose-engineered slots located directly above the top-plate stream air to the voice coil. In addition, the upper surface of the top-plate is directly exposed to this airflow, whereas on a conventional design it is isolated from this flow by the lower flange of the frame. This technology not only increases thermal power handling but also sound quality by minimizing dynamic parameter shifts and power compression. In plain English, this driver keeps itself cool so you can play your system longer, safer, and without having to worry about frying the motor.

Tight, Clean, Articulate Bass

DMA is JL Audio's proprietary Dynamic Motor Analysis system and is aimed at improving dynamic motor behavior. As a result of DMA optimization, W3v3 motors remain linear in motor force over an extreme range of excursion and also maintain a highly stable fixed magnetic field in the gap over a wide power range. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass. Its main catalyst is the driver's Ultra-long Voice Coil, which allows extreme linear excursion, phenomenal power handling, and control, control, control.

Product Features:








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  • 6.5" W3v3 Series Subwoofer Driver
  • Power Handling:
    • RMS: 150 watts
  • Recommended Power Range: 50 - 150 watts
  • Impedance: Single 4-Ohm
  • Injection-molded, mineral-filled polypropylene cone
  • Nitrile butadiene rubber surround
  • Stamped steel basket
  • Customization trim ring
  • Floating-cone attach method
  • Highly linear, DMA-Optimized motor system
  • Insert molded suspension, coil and terminal sub-assembly
  • Patented vented reinforcement collar (VRC)
  • Elevated frame cooling design
  • Nickel plated brass spring terminals
  • Engineered lead-wire design and attachments
  • Black Steel-Mesh Grille Insert Available: JL Audio SGRU-6
  • Precision-built in USA at JL Audio's Miramar, Florida factory
  • Mounting depth: 4.25 "
  • Cutout dimensions: 5.50 "
  • Free Air Resonance (Fs): 41.80 Hz
  • Sensitivity: 80.49 dB
  • Xmax: 8.89 mm
  • Reference Efficiency (no): 0.0700%
  • Frequency response: ~32 ~ 250 Hz
  • Matching Amplifiers:
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Check out the JL Audio 8W3v3 Owner's Manual

JL Model Comparison
From entry level woofers to competition grade, JL has them all. Let us find which one works for you.

Model RMS Power Cone Material Surround Material Sensitivity (dB) Frequency Response Xmax (mm Terminals Made In America
W7 Series 500-1500 Watts Polypropylene Foam Overroll 82.7 - 86.3 15-250 Hz 19-32 Push Terminals
W6 Series 600 Watts Polypropylene Rubber 82.7 - 85.4 20-200 Hz 19 Push Terminals
W3 Series 150-600 Watts Polypropylene Rubber 80.5-87.90 20-250 Hz 8.89-15.5 Push Terminals
W1 Series 150-300 Watts Polypropylene Rubber 83.9-86.1 22-200 8-11 Push Terminals
W0 Series 300-500 Watts Polypropylene Foam 84-88.20 20-250 Hz 11.4-12.7 Push Terminals
WX Series 200 Watts Polypropylene Foam 86-87.17 22-250 Hz 10 Spade Terminals

This item is currently not eligible for our low price guarantee. This may be due to supply constraints, manufacturer restrictions, or another reason. We're always here to help you get the best price possible so give us a call or email today. Our experts will do their best to build the system that works for you within the rules.

Subwoofer Specifications
Subwoofer Series
W3v3 (JL Audio)
Subwoofer Size
RMS Power Handling
150 watts
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
Frequency Response
32 - 300 Hz
80.49 dB
Xmax (millimeters)
8.89 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Mineral-Filled Polypropylene
Woofer Surround
Nitrile Butadiene Rubber NBR
Magnet Structure
Subwoofer Grille
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Minimum Sealed Box Volume
0.15 cubic feet
Optimum Ported Box Volume
0.25 cubic feet
Top-Mount Depth
Cutout Diameter
Shallow Mount Installation
Electromechanical Parameters
Free-Air Resonance (Fs)
41.80 Hz
Equivalent Compliance (Vas)
5.13 liters
Total Speaker Q Value (Qts)
Electrical Q Value (Qes)
Electrical Resistance of Voice Coil (Re)
3.476 ohms
Mechanical Q Value (Qms)
What is in the box?
WITB: Subwoofers
User manual
Authorized Dealer
Authorized Dealer
Authorized Dealer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
  • JL Audio W3 Car Subwoofer Review
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
JL Audio 6W3V3-4

JL Audio 6W3V3-4



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By feature average rating



June 9, 2014

Make your box to these specs for Awesomeness...

Had one of these from a prior project. Using 1/2" MDF Made a box 7 x 14 x 13 (.5417 cu ft) w/ a Precision 2" Flared Port kit cut-down to 10" total assembled length (Tune is about 36-37 Hz) firing out the side. Before closing the box... I put rubber Self-Adhesive Roof-flashing (avail at HDepot, Lowes) on all sides except (top-firing) baffle, be sure to use a roller to push-out any and all air pockets. Staple 1 layer of High-Loft Quilt Batting on all sides except baffle (avail at JOANN's Fabrics). On baffle I also glued some 1" x 6" strips in the middle of the open spaces to either side of the centered woofer cutout hole on the baffle to add rigidity. You'll need 6 Bar Clamps, and at least 2 90 degree clamps. I just used Tite Bond II Wood Glue. The only screws are to mount the sub, and on the Banana plugs Terminal plate I put on. In my ofc room I was underwhelmed and at low-to-mid 20Hz's I could hear a bit of port noise running off a 50 Wattt plate amp. But OH MAN when I put it in her XTERRA using 140 Watts Bridged at 4 Ohms... DAYUM!! I shocked the heck outta myself. The output was almost on par with the Infinity Ref 860W in 1.02 cu ft I had in their before she wanted a smaller setup. This lil booger really impressed me even more in this particular setup. The specs JL gives for the .25 cu ft slot-ported box suck because it has WAY too much port noise with those specs.


found this helpful.


December 1, 2008


my friend has two of these in the truck of his car and when i sat in the car i thought he had 12's. These things beat hard for their size... im gettin a wall of them put in my suv
very good subs


found this helpful.

Kenny J

February 26, 2011

Outstanding Customer Service

I purchased a speaker to replace a blown factory sub. I purchased one that was too deep for my factory enclosure. My sales rep was a big help in finding a speaker that fit into my shallow factory enclosure. Took the original purchase back with no questions asked and got the new one out right away. Back to enjoying some bass to go along with the treble!


found this helpful.

Usman Carlucci

August 27, 2012


Performed beyond my expectations, simply excellent! The bass is just right, not enough to be a nuisance to other road user but enough to really enjoy music. I am buying another one for my other car.


found this helpful.

6 inch sub

April 15, 2012

Jl audio 6w3v3-4

I would recommend this sub to someone who wants that little extra bit of bass without over doing it. They work great for metal and rock and would pair up great with a bigger sub to get some of the higher ranged tones.


found this helpful.


September 17, 2013


Bought 4 of the them to but under my back seat in my 2009 Ford F-150 Super Crew Cab. I made a custom box to fit. The hit hard and sound great. Small enough not to have to change any sitting.
Had them shipped to a location in the US and then shipped to me in the Middle East. Nothing else around like it.


found this helpful.


March 26, 2010

Nice Bump for my MoTo!

Put one of these in a sealed, molded, form-fitting fiberclass enclosure 0.20 - 0.25 cu. ft. I hand-made to fit in the trunk of my MoTo. It's being powered by 2 rear channels of Eclipse EA4200 amp with those 2 channels set to Mono and LPF. (140 watts @ 4 Ohms),

Front channels of amp are full-range powering 2 4" Polk Audio db401's in the fairing.

I've been steadily getting astonished looks and comments about how good my system sounds, and people are shocked it's coming from my moto!


found this helpful.


September 29, 2009


I have two of these in a 2007 frontier and they sound great. I really hate giving up space that is why I got these very nice.


found this helpful.

dan the man

September 18, 2009


I put this 6w3v3-4 in the back of my single cab pick up where the jack was in a custom box it fit like a glove an the seat still slides all the way back it sounds like if i have two 10"s in the back this is one bad a** sub. very happy A ++++++++++++++++++++++++++++++.


found this helpful.


March 14, 2010

The Perfect Woofer

I have an MR2 Spyder with NO ROOM FOR ANYTHING so i decided to put two of these bad boys in my doors. I've never been so satisfied with something so small in my life. Beautifully defined sound when coupled with my Memphis monoblock. Highly recommended to anyone who needs bass but doesn't have the room for a box.


found this helpful.


February 21, 2010

Bass Monster!

I bought one from Sonic and built the recommended sealed enclosure. This thing slams for it's size, it's comparable, if not better than some 8" subs. I'm running it on 170 watts rms and it sounds incredibly clean. It blends with my RF Power series coaxials nicely. You won't be disappointed with this sub if your looking for tight and accurate sound. Don't forget to buy the grille too!


found this helpful.


February 12, 2009

Amazing subwoofer

I bought two of these, and they are amazing. They really bounce considering their size...


found this helpful.


October 8, 2012

awesome little speaker

Great price, fast shipping, speaker works great and performs better than expected. Thanks.


found this helpful.


October 24, 2012

Little beast behind the seat.

This sub packs a punch, and if set up right inside a well constructed box, outperforms the cheaper, 8" and 10" that I've heard. Looks amazing reversed as well. But the real winner on this amp is the size, for a sealed enclosure it only requires .15cf! You could put this thing under your kids bed and give him nightmares, 'cause this sub is a monster!

Perfect for small cars with little to no room like my MR2 Rev.2, MX-5 etc.

Great for precision and filling out the bottom end of your frequencies, but can't compete with the larger, properly installed and powered 8 and 10" subs but still a stunner!


found this helpful.


July 2, 2012

small and sweet

I bought this for my little motorhome. It works great with my alpine head and amp. I put it in a little oak cabinet, behind the driver's seat.
It is very good audio quality, not just a big boom box.


found this helpful.
Wiring Guide to Wire 1 JL Audio 6W3V3-4 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 JL Audio 6W3V3-4 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 JL Audio 6W3V3-4 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 JL Audio 6W3V3-4 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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150W RMS 6.5" W3v3 Series Single 4-Ohm Subwoofer


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