JL Audio 12W3v3-2 User Manual

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12W3v3-2 /12W3v3-4 /12W3v3-8

Subwoofers

o w n e r ’ s m a n u a l

Congratulations on your purchase of a JL Audio subwoofer component. Your JL Audio subwoofer is a precision loudspeaker which has been engineered to produce the highest quality sub-bassperformance in your vehicle. Authorized JL Audio dealers have extensive technical information for many different applications of your new speaker. They also have the knowledge, skills and tools to build ahigh-qualityenclosure that will maximize the performance of your speaker. We highly recommend that you have your enclosure built by an authorized JL Audio dealer.

Inside you will find specifications and two recommended enclosures for your speaker; one is a sealed enclosure, the other is a ported design. Both types of enclosures will give you excellent sound quality and low-frequencyextension. The sealed enclosure is a better choice if space is extremely tight, but the ported enclosure will produce 3dB more output at the same power if you have the extra space to work with.

JL AUDIO 12W3v3-2 /12W3v3-4 /12W3v3-8

U.S. PATENTS: #5,734,734 #6,501,844 #6,219,431 #D480,709 Other U.S. & Foreign patents pending.

 

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12W3v3 SUBWOOFER PHYSICAL

SPECIFICATIONS

Nominal Diameter: 12.0 in. 305 mm

Overall Diameter (A): 12.5 in. 318 mm

Mounting Hole Diameter (B): 11.0625 in. 281 mm

Bolt Hole Circle (C): 11.7 in. 297 mm

Magnet Diameter (D): 5.5 in. 140 mm

Mounting Depth (E): 6.65 in. 169 mm

Net Weight: 14.50 lbs. 6.58 kg

Driver Displacement: 0.071 ft³ 2.01 litres

SUBWOOFER

12W3v3-2

12W3v3-4

12W3v3-8

 

 

 

 

 

 

 

Free Air Resonance (Fs):

27.97

Hz

26.72

Hz

28.28

Hz

 

 

 

 

 

 

 

Electrical “Q” (Qes):

0.534

 

0.472

 

0.553

 

 

 

 

 

 

 

 

Mechanical “Q” (Qms):

7.678

 

7.572

 

6.936

 

 

 

 

 

 

 

 

Total Speaker “Q” (Qts):

0.500

 

0.444

 

0.512

 

 

 

 

 

 

 

 

Equivalent Compliance (Vas):

2.806

ft³

2.844

ft³

2.729

ft³

 

79.47

litres

80.54

litres

77.29

litres

 

 

 

 

 

 

 

One-way,Linear Excursion (Xmax)*:

0.510

in.

0.510

in.

0.510

in.

 

13.0 mm

13.0 mm

13.0 mm

 

 

 

 

Efficiency (1W/1m)**:

87.15 dB SPL

87.15 dB SPL

87.02 dB SPL

 

 

 

 

Effective Piston Area (Sd):

80.600 ft²

80.600 ft²

80.600 ft²

 

0.0520 m²

0.0520 m²

0.0520 m²

 

 

 

 

DC Resistance (Re):

1.658 ohm

3.563 ohm

7.310 ohm

 

 

 

 

Nominal Impedance:

2 ohm

4 ohm

8 ohm

 

 

 

 

Power Handling (continuous):

500W

500W

500W

 

 

 

 

 

 

 

*Xmax specifications are derived via one-wayvoice coil overhang method with no correction factors applied.

**Efficiency (1W/1m) is not an accurate indicator of a subwoofer’s output capability and should not be used as a comparison to other subwoofers to determine which one is “louder” !

2

JL AUDIO 12W3v3-2/12W3v3-4/12W3v3-8

All specifications are subject to change without notice.

SUBWOOFER

 

 

RECOMMENDED SEALED ENCLOSURES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Volume

 

External Dimensions

 

F3

Fc

Qtc

 

 

 

 

 

 

 

 

 

 

(net int.)

 

(Width xHeight xDepth)

 

(Hz)

(Hz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W3v3-2

1.250 ft³

 

23 in. x 14 in. x 10 in.

 

41.8

50.4

0.96

 

 

 

 

 

 

 

 

 

35.4 litres

 

584 mm x 356 mm x 254 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W3v3-4

1.125 ft³

 

23 in. x 14 in. x 9.25 in.

 

43.7

50.2

0.83

 

 

 

 

 

 

 

 

 

31.8 litres

 

584 mm x 356 mm x 235 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W3v3-8

1.250 ft³

 

23 in. x 14 in. x 10 in.

 

41.5

50.5

0.91

 

 

 

 

 

 

 

 

 

35.4 litres

 

584 mm x 356 mm x 254 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUBWOOFER

 

 

RECOMMENDED PORTED ENCLOSURES

 

 

 

 

 

 

 

 

 

 

 

 

Volume

Enclosure External Dimensions

 

Slot Port Specs

Rec. Slot Port Internal Dimensions

 

Tune to:

F3

 

(net int.)

 

(Width xHeight xDepth)

 

Slot Area x Slot Length

SlotWidth xSlotHeight xSlotLength

 

(Hz)

(Hz)

 

 

 

 

 

 

 

 

 

 

12W3v3-2

1.75 ft³

 

29 in. x 14 in. x 12.625 in.

 

17.1875 sq. in. x 26.125 in.

1.375 in. x 12.5 in. x 26.125 in.

 

30.0

36.0

49.6 litres

 

737 mm x 356 mm x 321 mm

 

110.9 sq. cm. x 664 mm

35 mm x 318 mm x 664 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W3v3-4

1.75 ft³

 

29 in. x 14 in. x 12.625 in.

 

17.1875 sq. in. x 26.125 in.

1.375 in. x 12.5 in. x 26.125 in.

 

30.0

35.0

49.6 litres

 

737 mm x 356 mm x 321 mm

 

110.9 sq. cm. x 664 mm

35 mm x 318 mm x 664 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W3v3-8

1.75 ft³

 

29 in. x 14 in. x 12.625 in.

 

17.1875 sq. in. x 26.125 in.

1.375 in. x 12.5 in. x 26.125 in.

 

30.0

35.0

49.6 litres

 

737 mm x 356 mm x 321 mm

 

110.9 sq. cm. x 664 mm

35 mm x 318 mm x 664 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The enclosure recommendations listed are external dimensions which assume the use of 3/4" (19mm) thick material. If you are using 5/8" (16mm) thick material, subtract 1/4" (6.5mm) from each dimension. Do not use any material with a thickness of less than 5/8" (16mm) as this may compromise the rigidity of the enclosure.

All enclosure volumes listed are net internal volumes!

Box volume displacement, port displacement and brace displacement must be added to obtain the final gross internal volume.All enclosure dimensions listed have already taken this into account.

When using two subwoofers in a common enclosure simply double the required volume and, in the case of a ported enclosure, use two times the recommended port(s).

We recommend the use of this speaker in a biamplified system using high-qualitysatellite speakers and amplifiers. We do not recommend the use of this subwoofer with a passive crossover (coil), as this type of device will adversely affect performance.

! ! CAUTION! !

“EL” (Port Extension Length) 12W3v3-2:13.5 in. (343 mm) 12W3v3-4:13.5 in. (343 mm) 12W3v3-8:13.5 in. (343 mm)

Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss. This high-performancespeaker can exceed this level. Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity.

When installing a subwoofer in your vehicle, it is extremely important to secure the enclosure firmly. We recommend bolting the enclosure through the metal of the floorpan or the frame of the vehicle with large diameter washers for reinforcement. If an enclosure is not firmly attached, it can become a projectile in a collision. This is particularly important in a hatchback, station wagon, sports utility vehicle, or van.

JL AUDIO 12W3v3-2/12W3v3-4/12W3v3-8

3

RECOMMENDED CONTINUOUS (RMS) POWER RANGE FOR ONE SUBWOOFER DRIVER:

2 5 W

MEDIUM GRAY (MINIMUM):

From a reliability standpoint, this zone represents a very comfortable operating power range for each driver. This level of power will not stress the woofer but will not extract all of its performance potential, either.

Use of less than the minimum power level will not damage the woofer, but may result in unsatisfactory performance.

7 5 W

1 5 0 W

3 0 0 W

 

6 0 0 W

1 0 0 0 W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12W

3v3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L E G E N D :

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M I N I M U M

O P T I M U M

M A X I M U M

WA R R A N T Y VO I D

 

 

LIGHT GRAY (OPTIMUM):

 

 

DARK GRAY (MAXIMUM):

BLACK (WARRANTY VOID):

This zone represents the best compromise

Slightly more SPL will be gained by pushing the

We do not recommend operating woofers at

between long-termreliability,high-outputand

power into this zone, but typically not more than

this level of power. In this zone, there is a very high

low-distortionperformance. This power level is

2dB, compared to the light gray zone.The subwoofer

probability that the driver will fail due to excessive

lower than the woofer’s continuous power rating

driver is designed to operate safely up to this power

heat and/or mechanical stress.

(as published in its specifications), but you will still

range, but not beyond. Operate with caution.

Subwoofer drivers operated at these levels of

be taking advantage of the woofer’s, low-distortion

 

 

 

 

 

 

 

power are NOT covered under warranty.

performance range without undue risk of failure.

 

 

 

 

 

 

 

 

 

JL Audio offers an extensive line of high-performancesubwoofer drivers to fit a wide variety of enclosure and power applications.When designing systems with our drivers, it is very important to achieve a good power match between the subwoofer amplifier and the subwoofer driver's capabilities. The power levels listed in the above chart represent continuous (RMS) amplifier power per woofer and assume that the user will regularly make full use of that powerwithout drastically overdriving the amplifier(s). Make sure you factor system impedance and the total number of subwoofers into your calculations.Adhering to these power recommendations will result in systems that are both reliable and enjoyable.

JL AUDIO LIMITED WARRANTY (USA)

Automotive Subwoofer Components

JJL AUDIO warrants this speaker to be free of defects in materials and workmanship for a period of one (1) year from the original date of purchase.

Damage caused by the following is not covered under warranty: accident, misuse, abuse, product modification or neglect, failure to follow installation instructions, unauthorized repair attempts,misrepresentations by the seller. This warranty does not cover incidental or consequential damages and does not cover the cost of removing or reinstalling the unit(s). Cosmetic damage due to accident or normal wear and tear is not covered under warranty.

This warranty is not transferable and applies only to the original purchaser of the product from an authorized JL AUDIO dealer. Warranty is voided if the factory-appliedproduct serial number is removed or defaced.

Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction, JL AUDIO will, at its discretion, repair or replace the defective product with new or remanufactured product at no charge.

Any applicable implied warranties are limited in duration to the period of the express warranty as provided herein beginning with the date of the original purchase at retail, and no warranties, whether express or implied, shall apply to this product thereafter. Some states do not allow limitations on implied warranties, therefore these exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

If you need service on your JL AUDIO product:

All warranty returns should be sent to JL AUDIO freight prepaid through an authorized JL AUDIO dealer and must be accompanied by proof of purchase (a copy of the original sales receipt.) Direct returns from consumers or non-authorizeddealers will be refused unless specifically authorized by JL AUDIO with a valid return authorization number. Warranty expiration on products returned without proof of purchase will be determined from the manufacturing date code. Coverage may be invalidated as this date is previous to purchase date. Return only defective components.Non-defectiveitems received will be returnedfreight-collect.Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO. Freight damage on returns is not covered under warranty. Always include proof of purchase (sales receipt).

For Service Information in the U.S.A. please call:

JL Audio customer service: (954) 443-1100during normal business hours (Eastern Time)

JL Audio, Inc

10369 North Commerce Parkway, Miramar, FL 33025

International Warranties:

Products purchased outside the United States of America are covered only by that country’s distributor and not by JL Audio, Inc.

Printed in USA

JLA12W3v3_MAN_01_08_011202