owner`s manual
Contents
1. 12WOvs 4 Subwoofers owner s manual 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 bass performance 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 a high quality enclosure 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 frequency extension 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 Ahead o fhe Curve JL AUDIO 12WOv3 4 U S PATENT 6 219 431 Y y 12W v3 SUBWOOFER PHYSICAL SUBWOOFER 12W v3 4 SPECIFICATIONS Free Air Resonance Fs 28 43 Hz Nominal Diameter zn 305 mm Electrical Q Qes 0 715 Overall Diameter A 2 52 in Mechanical Q Qms 10 709 318 mm Total Speaker Q Qts 0 670 M2. ages 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 applied product 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 authorized dealers will be refused unless specifically authorized by JL AUDIO with a valid return authorizat
3. arge 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 CAUTION JL AUDIO 12WOv3 4 3 RECOMMENDED CONTINUOUS RMS POWER RANGE FOR ONE SUBWOOFER DRIVER 30W 60W 125W 250W 500W 12W v3 P LEGEND MINIMUM OPTIMUM MAXIMUM WARRANTY VOID 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 LIGHT GRAY OPTIMUM This zone represents the best compromise between long term reliability high output and low distortion performance This power level is lower than the woofer s continuous power rating as published in its specifications but you will still be taking advantage of the woofer s low distortion performance range without undue risk of failure DARK GRAY MAXIMUM Slightly more SPL will be gained by pushing the power into this zone but typically not more than 2dB compared to the light gray zone The subwoofer driver is designed to operate safely up to this power range but not beyond Operate with caution BLACK WARRANTY VOID We do not recommend operating woofers at thi
4. ion 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 defective items received will be returned freight 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 1100 during 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 JLA12W v3_MAN_09_13
5. ounting Hole Diameter B 1 0825 in 5 281 mm Equivalent Compliance Vas 230K a P 71 64 liters P 1 7 in Bolt Hole Circle C 297 mm 0 45 in One way Linear Excursion Xmax 11 4 MM lt 5 276 in Meee tee earn Efficiency 1W 1m 85 64 dB SPL _ 54 in _ 74 509 in Mounting Depth E 37 mm Effective Piston Area Sd 0 0481 m aae Sl os DC Resistance Re 4 280 ohm Net Weight 3 68 kg Nominal Impedance 4 ohm Driver Displacement goer p 1 36 liters Power Handling continuous 300 W Xmax specifications are derived via one way voice 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 JL AUDIO 12WOv3 4 All specifications are subject to change without notice SUBWOOFER RECOMMENDED SEALED ENCLOSURE oO Volume External Dimensions net int Width x Height x Depth 1 375 ft 16 in x 19 in x 11 75 in ine 38 94 liters 406 mm x 483 mm x 298 mm 260 ara 1 173 SUBWOOFER RECOMMENDED PORTED ENCLOSURE Volume Enclosure External Dimensions Round Port Specs net int Width x Height x Depth Inner Diameter x Length 1 750 ft 17 5 in x 14 75 in x 16 25 in 3in x14in 12W v3 4 4955 liters 445 mm x 375 mm x 413 mm 76 2 mm x 356 mm The enclosure recommendations listed are exte
6. rnal oO dimensions which assume the use of 3 4 19mm thick material If you are using 5 8 16mm thick y material subtract 1 4 6 5mm from each dimension Do not use any material with a thickness of less than O 5 8 16mm as this may compromise the rigidity of the enclosure Overhead Cutaway View 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 Prolonged exposure to sound pressure levels in excess of 100dB can cause permanent hearing loss This high performance speaker can exceed this level Please exercise restraint in its operation in order to preserve your ability to enjoy its fidelity We recommend the use of this speaker in a bi amplified system using high quality satellite 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 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 l
7. s 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 unsatisfactory performance JL Audio offers an extensive line of high performance subwoofer 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 power without 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 dam
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