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JL Audio 12W0v3-4 (Open Box Complete)

300W RMS 12" W0v3 Series Single 4-Ohm Subwoofer

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JL Audio 12W0v3-4 (Open Box Complete)

300W RMS 12" W0v3 Series Single 4-Ohm Subwoofer


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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.


20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!


2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.



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JL Audio W0v3 Series Subwoofer Driver
JL Audio W0v3 Series Subwoofer Driver

The W0v3 offers superb excursion capability, linearity and an overall performance output that puts it right at the top of its price class. The driver features a very beefy 2.0-inch diameter voice coil, a DMA-optimized motor system and JL Audio's patented Elevated Frame Cooling design - all purpose-engineered for enhanced power handling and reliability. What this also means, is your system will be immediately injected with the increase in output and better sound fidelity that one expects from a JL Audio product. In addition, excellent excursion capability and linearity allow it to reproduce sub-bass with striking extension and quality. When matched up with the proper power source, signal and setup the W0v3 is capable of a well rounded sound that is unparalleled by any other driver in its price range.

Dynamic JL Audio Performance

Flexible JL Audio Power

The 12W0v3 Subwoofer can be driven with as little as 75 Watts. However, for best audio performance it is recommended to run an amplifier capable of between 200 - 300 Watts of continuous power per driver, like the JL Audio XD300/1v2 or JL Audio JX500/1D. In addition, these subwoofers are optimized to operate in either a ported or sealed enclosure, needing only 1.375 cubic feet of air space in a sealed box and 1.75 cubic feet in a ported/vented enclosure. (Specific dimensions and figures can be found in the user manual, linked further below.)

Striking Linearity and Control

Striking Linearity and Control

DMA is JL Audio’s proprietary Dynamic Motor Analysis system and is aimed at delivering superior dynamic stability and low distortion. As a result of DMA optimization, W0v3 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 tight, clean, articulate bass that also allows for extreme linear excursion, phenomenal power handling and control, control, control.

JL Audio 12W0v3 Recommended Power Range

Product Features:

  • Item Condition: Like New, Open Box, Complete
    Not Refurbished


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  • 12" W0v3 Series Subwoofer Driver
  • Power Handling:
    • RMS: 300 watts
  • Recommended Power Range: 75 - 300 watts
  • Impedance: Single 4-Ohm
  • Mineral-filled, polypropylene cone woofer for excellent durability
  • Large roll surround for generous amounts of excursion
  • Elevated frame cooling brings air directly to the voice coil
  • Designed for compact sealed enclosures or medium-sized ported enclosures
  • Large excursion for louder bass and less distortion
  • DMA Optimized motor system reduces distortion and tight, clean bass
  • Lead wire woven into spider for added strength
  • Metallic silver frame finish
  • 2.0" High temperature voice coil
  • Mounting depth: 5.40 "
  • Cutout dimensions: 11.0625"
  • Free Air Resonance (Fs): 28.43 Hz
  • Sensitivity: 85.64 dB
  • Xmax: 11.4 mm
  • Reference Efficiency (no): 0.2200%
  • Frequency response: ~22 ~ 250 Hz
  • Black Steel-Mesh Grille Insert Available: JL Audio SGRU-12
  • Matching Amplifier:
  • Authorized Internet Dealer
  • 90 Day Manufacturer's Warranty

Check out the JL Audio 12W0v3-4 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

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
W0v3 (JL Audio)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
300 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
22 - 250 Hz
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
85.64 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
11.4 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Mineral-Filled Polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.375 cubic feet
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
1.75 cubic feet
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.


Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
28.43 Hz
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
74.64 liters
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
4.280 ohms
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 Ft. 12 Gauge JL Audio Speaker Cable

Get true gauge JL Audio speaker wire to match your JL Audio subwoofer!

Your Price $34.99

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $70.97

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $97.97

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $64.73

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $2.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.97

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Universal 12" Subwoofer Grille

Keep your subwoofer safe from accidental damages with this amazing grill.

Your Price $19.95

12" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $6.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 JL Audio 12W0v3-4 (Open Box Complete) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 JL Audio 12W0v3-4 (Open Box Complete) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 JL Audio 12W0v3-4 (Open Box Complete) Subwoofers

4 Channel Amp

4 JL Audio 12W0v3-4 (Open Box Complete) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 1 answer
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Why did you choose this?
Sonic Electronix Store
I know a guy who used to work for JL and he knows what best.
Stephen S on Dec 15, 2014
my sub just wont play?
A shopper on Jul 7, 2015
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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: JL Audio 12W0v3-4 (Open Box Complete)