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JL Audio 12W0 12" ( 12W0-4 )

Discontinued
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This item has been discontinued

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12w1v24 thumbnail

JL Audio 12W1v2-4

OUR PRICE: $129.95

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  • Nominal Diameter: 12 inches (300 mm)
  • Continuous Power Handling: 125 Watts
  • Voice Coil: 1.38" diameter, 6-layer, Kapton former
  • Single 4 ohm Voice Coil
  • Xmax (one-way, linear): 0.34" (8.6 mm)
  • VRC™ Technology: The patented VRC system cools the voice coil and mechanically locks the critical joint between the spider, cone and voice coil former, resulting in exceptional reliability
  • Work well in compact enclosures
  • Class-leading excursion capabilities
  • Work in sealed, ported and even bandpass enclosures
  • Manufacturer Data Sheet (Adobe Acrobat Reader Required)

Product History:

JL Audio 12W1v3-4 thumbnail
(newest, current model)
JL Audio 12W1v2-4 thumbnail
(previous model, replaced by JL Audio 12W1v3-4)
JL Audio 12W0 thumbnail
(previous model, replaced by JL Audio 12W1v2-4)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
12"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
300 watts approx.
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.
125 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.
Single
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.
Sensitivity
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".
87.6 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.
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.

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.
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.
Foam
Magnet Structure
Defines the overall structure of the subwoofers magnet.
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.
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.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in 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.
6"
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.
11"
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.
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.
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.
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.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
78%
4 Star
22%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.8
Features
4.1
Design
4.4
Usability
4.9
Josh

Ottawa, OH

Overall
Durability
Value
Features
Design
Usability
AMAZING!!!!

January 16, 2013

Just bought 4 of these old beasts. 2 off a friend and the other 2 off ebay. cant wait to find me a car to do a wall with the old beasts. 2 are pretty loud cant wait to here all 4 at once in a wall.

0 of 0 found this helpful

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Jared

Fillmore, CA

Overall
Durability
Value
Features
Design
Usability
first pair of subs, amazing

May 8, 2011

Have had these for 6 years and they still got life in them. Had them wired to an old Rockford P600.1BD and they sounded incredible. Good SQ with some nice solid volume. Eventually had them replaced by some Rockford Fosgate P2's but I still have them and still love them. Great subs to start off with.

0 of 0 found this helpful

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Raptor660

Eaton Rapids, MI

Overall
Durability
Value
Features
Design
Usability
Nice SQ subs!

March 29, 2011

I just got a pair of these in on trade.... Very impressed! Ive owned Fi, Earthquakes, HCCA's, every kind of Rockford and Kicker. And these little things are nice, Of coarse they arent super loud but they r loud enough.

I have 2 in about a 2.5 cu ft ported box tuned around 35 hz wired to 2 ohms running on a Memphis MClass MC500D amp so they r getting the full 500w rms (and thats under rated) so each sub is getting 250rms and they r alot louder than i would of thought and hit pretty low too.

Great for the daily driver that doesnt want his vocals to be drownded by stupid loud bass, or someone that can appreciate sq. put these on a nice class D monoblock and enjoy

0 of 0 found this helpful

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jake

marysville mi

Overall
Durability
Value
Features
Design
Usability
great sub

April 25, 2010

great subs. i have one. they can handle tons of wattage i have mine hooked up at 250 rms. sounds great. the rubber surround is ripped but still sounds amazing. i glued it back together =]

0 of 0 found this helpful

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tbfastr

bensalem.pa

Overall
Durability
Value
Features
Design
Usability
awsome

November 29, 2009

ive had a pair(2) jl 12w0-4 for 8 years,in several different cars. these speakers faithfully pounded my ears. replaced 1 shortly after i got them under warrenty. on a punch 100 amp bridged. bottom line these are the sheeeit.

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t snizzle

bellefonte

Overall
Durability
Value
Features
Design
Usability
good subs

August 12, 2009

i have 2 of these w0-4 12's in a box 1cube ft per chamber with 2 inch ports. i am pushing them with a 900watt rms amp and they sound great. although when the box was sealed the one made a popping noise. as soon as i ported the box the popping sound went away for the most part but you can still hear it when you open the trunk (i think the sub is partially blown :( but still sound amazing). 900rms is ALOT more than JL has rated these subs for but they seem to take it very well (for now at least). i have the gain and bass boost on my amp almost the whole way up and the hertz level is around 57. also the excursion is amazing for a low watt subwoofer. the only thing i don't like about them is they are single 4ohm and not dual 4 or 2ohm subs. after having these i would never buy any other brand of woofer besides JL and MA audio.

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Marise

Toledo, OH

Overall
Durability
Value
Features
Design
Usability
bang for your buck

July 11, 2008

these subs are awesome! I have 4 of them in a tempo, and it knocks. they are a cheap sub (good), they pound at a low wattage(good) and the retro look is cool too. The only thing that i could possibly recommend to anyone is that these subs are NOT made for ported boxes. i had them in my first box with ports and it sounded horrible, but put them in a sealed box and you'll be happy.

0 of 0 found this helpful

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Ernesto

Chula Vista, CA

Overall
Durability
Value
Features
Design
Usability
Good Speakers

July 20, 2005

I have 2 of these in my mustang running on a 200 watt fosgate amp and they hit really hard. My nieghbor thought I had W3's. Would highly recomend for any one who wants good sound quality from a low wattage speaker.

0 of 0 found this helpful

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anthony

Anoka, MN

Overall
Durability
Value
Features
Design
Usability
Jl audio 12W0

July 18, 2005

ive had three of these subs in my jimmy before and they hit and sound unbelievably and sound so clear with little wattage. i would reccomend them to anyone!

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Accessory Tools and Products

Accessories added

25 Ft. 12 Gauge JL Audio Speaker Cable

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

Your Price $34.95

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 $59.99

Dynamat Sound Dampening Trunk Kit

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

Your Price $109.95

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 $69.99

12 oz. Can of Adhesive Spray

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

Your Price $6.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

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

Your Price $1.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $14.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

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

Your Price $79.99

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

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

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

1mm All Purpose Solder

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

Your Price $8.99

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

Impedance Meter / Signal Generator

Easy to locate tuning frequencies of passive radiators and ported enclosures

Your Price $299.99

1 JL Audio 12W0 12" ( 12W0-4 ) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 JL Audio 12W0 12" ( 12W0-4 ) Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

3 JL Audio 12W0 12" ( 12W0-4 ) Subwoofers

4 Channel Amp

4 JL Audio 12W0 12" ( 12W0-4 ) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

12W0

Weight

15.00lbs

Internal SKU

12w0

Internal Product ID

2383

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 12W0 12" ( 12W0-4 )