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OWNER'S MANUAL
500W Marine 3-Channel Amplifier
Thank you for purchasing a JL Audio amplifier for
your marine sound system.
Your amplifier has been designed and manufactured to exacting
standards in order to ensure years of musical enjoyment in your vessel.
For maximum performance, we highly recommend that you have
your new amplifier installed by an authorized JL Audio dealer. Your
authorized dealer has the training, expertise and installation equipment
to ensure optimum performance from this product. Should you
decide to install the amplifier yourself, please take the time
to read this manual thoroughly so as to familiarize yourself
with its installation requirements and setup procedures.
If you have any questions regarding the instructions in this
manual or any aspect of your amplifier's operation, please contact your
authorized JL Audio dealer for assistance. If you need further assistance,
please call the JL Audio Technical Support Department
at (954) 443-1100 during business hours.
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Table of Contents
Related Manuals for JL Audio M500/3
Summary of Contents for JL Audio M500/3
- Page 1 For maximum performance, we highly recommend that you have your new amplifier installed by an authorized JL Audio dealer. Your authorized dealer has the training, expertise and installation equipment to ensure optimum performance from this product.
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Page 2: Protect Your Hearing
(pg. 8) Sub. Ch. Preout Status Ch. 1 & 2 Input Filter Mode Sub. Ch. Input Selector Sensitivity Control Sensitivity Control Selection (pg. 7) (pg. 7) (pg. 8) (pg. 7) (pg. 11) 2 | JL Audio - M500/3 Owner’s Manual... -
Page 3: Safety Considerations
Cooling Efficiency Considerations: which does not interfere with your vessel’s factory The outer shell of your JL Audio amplifier is installed electronic devices. You should also take designed to remove heat from the amplifier the time to securely mount the amplifier using the circuitry. -
Page 4: Product Description
The M500/3 can be operated with a wide variety of source units and system configurations. wires to the amplifier. A fuse near the amplifier is not necessary if the M500/3 is the TYPICAL INSTALLATION SEQUENCE only device being run from the fused main The following represents the sequence power wire. -
Page 5: Power Connections
If wire should terminate into a fused distribution only the M500/3 is being run from that power block mounted as close to the amplifiers as wire, we recommend a 50A fuse be used. -
Page 6: Turn-On Lead
If you wish to send four discrete channels into the M500/3, simply use all four inputs and set the ( L ) “Input Mode” switch in the “4 Ch.” position. The... -
Page 7: Input Sensitivity Controls
INPUT SENSITIVITY CONTROLS The controls labeled “Input Sens.” located in Input Voltage Range: The M500/3’s input sections are designed to each channel section can be used to match the accept signal voltages from 100mV – 4V. This source unit’s output voltage to the input stage of... -
Page 8: Filter Controls
The active filter built into each channel inputs to feed this channel. This is useful for section of the M500/3 can be used to eliminate systems utilizing outboard active crossovers. potentially harmful and/or undesired frequencies “12dB”... -
Page 9: Remote Level Control (Optional)
With the addition of the optional Remote Level Control (HD-RLC), you can control the volume of the subwoofer channel (Subwoofer Level) or of the entire M500/3 from a location of 1) “1&2”: The preamp output delivers the same your choosing. This is useful for subwoofer level control, cabin speaker level control, zone volume signal that is connected to the CH 1&2 Inputs. -
Page 10: Speaker Outputs
The M500/3 has been designed seating it firmly so that no bare wire is exposed. for bridging of its main channel pair without the While holding the wire in place, tighten the set need for input inversion adaptors. -
Page 11: Subwoofer Outputs
Information: If you wish to send a left-only designed to deliver power into subwoofer loads or right-only signal to the M500/3’s main equal to or greater than 2 ohms. It is rated for channels you must use a “Y-Adaptor” to split... -
Page 12: Status Led / Protection Circuitry
This functionality can be used to diagnose a short-circuit by only connecting one channel at a time. The “Status LED” will turn amber when you connect the channel that is experiencing the problem and turn the volume up. 12 | JL Audio - M500/3 Owner’s Manual... - Page 13 If your amplifier fails or malfunctions, please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for service. There are no user serviceable parts or fuses inside the amplifier. The unique nature of the circuitry in the JL Audio amplifiers requires specifically trained service personnel.
- Page 14 34.8 V 24.5 V 6Ω 17.4 V 32.8 V 24.5 V 4Ω 17.4 V 28.2 V 24.5 V 3Ω 16.4 V not recommended 26.9 V 2Ω 14.1 V not recommended 26.8 V 14 | JL Audio - M500/3 Owner’s Manual...
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Page 15: Amplifier Section
APPENDIX B: APPENDIX C: Precise Frequency Selection Chart M500/3 Specifications: Recommended Fuse Value: 50A “FILTER FREQ” Recommended Fuse Type: MAXI® or AGU Detent Panel Actual Input Sections: Number Marking Freq. No. of Inputs: Two Stereo Pairs Full counter-clockwise: 49 Input Type: Differential-balanced with RCA jack inputs 01 . -
Page 16: Appendix D: Troubleshooting
Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier. 16 | JL Audio - M500/3 Owner’s Manual... - Page 17 “My amplifier shuts off once in a while, usually at higher volumes.” Check your voltage source and grounding point. The power supply of the M500/3 will operate with charging system voltages down to 10V. Shutdown problems at higher volume levels can occur when the charging system voltage (or remote turn- on voltage) momentarily drops below 10V.
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Page 18: Installation Notes
INSTALLATION NOTES: Use this diagram to document your amplifier’s switch and control positions. 18 | JL Audio - M500/3 Owner’s Manual... - Page 20 All warranty returns should be sent to JL AUDIO ’s Amplifier Service Facility 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.
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