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M3-650X_770X_03272019_SKU#011514

Printed in USA

LIMITED WARRANTY - MARINE SPEAKER SYSTEMS (USA)

JL AUDIO warrants this product to be free of defects in materials and workmanship for a period of two 

(2) years from the original date of purchase. 

This warranty is not transferable and applies only to the original purchaser from an authorized  

JL AUDIO dealer. 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. 

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.

Products installed as original equipment by boat manufacturers are covered by the boat manufacturer’s 

warranty, not JL Audio, Inc.

 

Warranty is void if the product’s serial number has been removed or defaced. 

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 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. If one speaker 
fails in a system, return only that speaker component, not the entire system. 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. 

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

JL Audio Customer Service: (954) 443-1100  

9:00 AM – 5:30 PM (Eastern Time Zone) 

JL Audio, Inc 

10369 North Commerce Pkwy.

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.

Summary of Contents for M3-770x

Page 1: ...deliver years of listening pleasure We strongly recommend that you have your new marine speakers installed by your authorized JL Audio dealer The installation professionals employed by your dealer hav...

Page 2: ...120 watts channel 20 140 watts channel Frequency Response 55 Hz 25 KHz 3 dB 45 Hz 25 KHz 3 dB Efficiency 1W 1m 89 5 dB 90 5 dB Nominal Impedance 4 ohms 4 ohms MARINE SPEAKER SPECIFICATIONS Woofers Inj...

Page 3: ...connect the system as shown will result in damage to your speakers which is NOT covered under warranty Do not substitute different crossover networks Do not attempt to remove the tweeter or lighting L...

Page 4: ...witch that will supply positive 12V power Fuse this main 12V connection according to the total amperage demands of all LED circuits Refer to the RGB LED Specifications table at left for individual cur...

Page 5: ...ations have been established run speaker cables from the amplifier outputs to the mounting locations For LED equipped models now is also a good time to run wires to each speaker location for LED activ...

Page 6: ...312 in 7 92 mm or less 1 8 in 3 18 mm pilot hole foam core fiberglass sandwich 1 8 in 3 18 mm pilot hole larger than 0 312 in 7 92 mm 9 64 in 3 57 mm pilot hole 8 SCREW PILOT HOLE RECOMMENDATIONS to a...

Page 7: ...7 DIAGRAM A Classic Grille Model Installation DIAGRAM B Sport Grille Model Installation...

Page 8: ...ginal 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 n...

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