JL Audio 12W0v2-4 User Manual

Size:
274.33 Kb
Download

12WØv2-4

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 12WØv2-4

U.S. PATENT: #6,219,431

B

12WØv2 SUBWOOFER PHYSICAL

SPECIFICATIONS

Nominal Diameter: 12.0 in. 305 mm

Overall Diameter (A): 12.52 in. 318 mm

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

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

Magnet Diameter (D): 5.05 in

128 mm

Mounting Depth (E): 5.4 in. 137 mm

Net Weight: 8.11 lbs. 3.68 kg

Driver Displacement: 0.048 ft3

1.36 liters

A

C E

D

SUBWOOFER

12WØv2-4

Free Air Resonance (Fs): 28.43 Hz

Electrical “Q” (Qes): 0.715

Mechanical “Q” (Qms): 10.709

Total Speaker “Q” (Qts): 0.670

Equivalent Compliance (Vas): 2.530 ft3

71.64 liters

One-way,Linear Excursion (Xmax)*:0.45 in. 11.4 mm

Efficiency (1W/1m)**: 85.64 dB SPL

Effective Piston Area (Sd): 74.509 in2

0.0481 m2

DC Resistance (Re): 4.280 ohm

Nominal Impedance: 4 ohm

Power Handling (continuous): 300 W

*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 12WØv2-4

All specifications are subject to change without notice.

SUBWOOFER

 

RECOMMENDED SEALED ENCLOSURE

 

 

 

 

 

 

 

 

 

Volume

External Dimensions

F3

Fc

Qtc

 

(net int.)

(Width xHeight xDepth)

(Hz)

(Hz)

 

 

 

 

 

 

 

 

12WØv2-4

1.375 ft3

16 in. x 19 in. x 11.75 in.

36.0

47.91

1.179

38.94 liters

406 mm x 483 mm x 298 mm

 

 

 

 

 

 

 

 

 

 

SUBWOOFER

 

RECOMMENDED PORTED ENCLOSURE

 

 

 

 

 

 

 

 

 

Volume

Enclosure External Dimensions

Round Port Specs

Tune to:

F3

 

(net int.)

(Width xHeight xDepth)

(InnerDiameter xLength)

(Hz)

(Hz)

 

 

 

 

 

 

12WØv2-4

1.750 ft3

17.5 in. x 14.75 in. x 16.25 in.

3 in. x 14 in.

26

30.8

39.56 liters

445 mm x 375 mm x 413 mm

76.2 mm x 356 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).

Werecommendtheuseofthisspeakerinabi-amplifiedsystem usinghigh-qualitysatellite speakers and amplifiers. We do not recommend the use of this subwooferwithapassive crossover (coil),asthistypeof devicewilladverselyaffectperformance.

! ! CAUTION! !

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 12WØv2-4

3

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

3 0 W

6 0 W

 

1 2 5 W

 

 

2 5 0 W

5 0 0 W

 

12WØv 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

MEDIUM GRAY (MINIMUM):

LIGHT GRAY (OPTIMUM):

 

 

 

DARK GRAY (MAXIMUM):

 

 

 

From a reliability standpoint, this zone represents

This zone represents the best compromise

Slightly more SPL will be gained by pushing

a very comfortable operating power range for

between long-termreliability,high-outputand

the power into this zone, but typically not more

each driver. This level of power will not stress the

low-distortionperformance. This power level is

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

woofer but will not extract all of its performance

lower than the woofer’s continuous power rating

subwoofer driver is designed to operate safely

potential, either.

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

up to this power range, but not beyond. Operate

Use of less than the minimum power level will

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

with caution.

 

 

 

 

 

 

not damage the woofer, but may result in

performance range without undue risk of failure.

 

 

 

 

 

 

 

 

unsatisfactory performance.

 

 

 

 

 

 

 

 

 

 

 

 

 

BLACK (WARRANTY VOID):

We do not recommend operating woofers at this level of power. In this zone, there is a very high probability that the driver will fail due to excessive heat and/or mechanical stress.

Subwoofer drivers operated at these levels of power are NOT covered under warranty.

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

JL 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.

Thiswarrantyisnottransferableandappliesonlytotheoriginalpurchaser 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 nonauthorized dealers 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 China

JLA12WØv2_MAN_02_09