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OWNER'S MANUAL
1000W Monoblock Class D Marine Subwoofer 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 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 MD1000/1v2
Summary of Contents for JL Audio MD1000/1v2
- 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: Installation Applications
(pg. 11) (pg. 7) (pg. 8) (pg. 9) Turn-On Input Sensitivity Mode Control (pg. 6) (pg. 8) Chassis Ground Connector (pg. 5) +12 V Power Remote Turn-On Connector Connector (pg. 5) (pg. 7) 2 | JL Audio -MD1000/1v2 Owner’s Manual... - Page 3 Cooling Efficiency Considerations: Stupid Mistakes to Avoid: The outer shell of your JL Audio amplifier is • Check before drilling any holes in your vessel to designed to remove heat from the amplifier make sure that you will not be drilling through circuitry.
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Page 4: Product Description
Use the same size power wire as the wire connected to the “+12V” connection (minimum 4 AWG). 5) Run signal cables and remote turn-on wire from the source unit to the amplifier mounting location. 4 | JL Audio -MD1000/1v2 Owner’s Manual... -
Page 5: Fuse Requirements
18 inches (45 cm) of the positive the distribution block will connect to the battery post connection. The fuse value at each M1000/1v2 with 4 AWG power wire. JL Audio power wire should be high enough for all of the ECS fused distribution blocks are recommended equipment being run from that power wire. -
Page 6: Turn-On Lead
If you find that the output cannot be reduced sufficiently with a direct speaker level signal applied to the amplifier, you may use a “line output converter” or voltage divider to reduce the signal level. 6 | JL Audio -MD1000/1v2 Owner’s Manual... -
Page 7: Input Sensitivity Controls
INPUT SENSITIVITY CONTROLS FILTER CONTROLS The control labeled “Input Sens.” can be used Most speakers are not designed to reproduce to match the source unit’s output voltage to the the full range of frequencies audible by the human input stage the M1000/1v2 for maximum clean ear. -
Page 8: Infrasonic Filter
500 Hz, due to its subwoofer-specific design. speaker system from excessive excursion. The “Infrasonic Filter” can be completely defeated by selecting the “Off” position on its switch. This bypasses all signal from flowing through the circuit. 8 | JL Audio -MD1000/1v2 Owner’s Manual... -
Page 9: Remote Level Control (Optional)
REMOTE LEVEL CONTROL (OPTIONAL) PREOUTS The M1000/1v2 incorporates a pass-through preamp output section, so that additional amplifiers can be easily added to the system. The preamp output delivers the same signal that is connected to the M1000/1v2’s inputs. With the addition of the optional Remote Level Control (HD-RLC), you can control the subwoofer volume from a location of your choosing. -
Page 10: Subwoofer Outputs
The “Status LED” will to initiate a protection mode which reduces remain amber for a few seconds, even if the over- power output. current condition is of a very short duration. 10 | JL Audio -MD1000/1v2 Owner’s Manual... - Page 11 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 12 M1000/1v2) at 3/4 source unit volume. 7) Connect the AC voltmeter to the speaker output connectors of the amplifier. Make sure you test the voltage at the correct connectors (+ and –). 12 | JL Audio -MD1000/1v2 Owner’s Manual...
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Page 13: General Specifications
APPENDIX B: APPENDIX C: Precise Frequency Selection Chart M1000/1v2 Specifications “FILTER FREQ” AMP FILTER General Specifications: Detent Panel Actual Recommended Fuse Value: 80A Number Marking Freq. Recommended Fuse Type: MAXI® or AGU Full counter-clockwise: 53 01 ......53 02 . -
Page 14: Appendix D: Troubleshooting
Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier. 14 | JL Audio -MD1000/1v2 Owner’s Manual... - Page 15 “My amplifier shuts off once in a while, usually at higher volumes.” Check your voltage source and grounding point. The power supply of the M1000/1v2 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) drops below 10V.
- Page 16 INSTALLATION NOTES: Use this diagram to document your amplifier’s switch and control positions. 16 | JL Audio -MD1000/1v2 Owner’s Manual...
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Page 18: Installation Notes
INSTALLATION NOTES: 18 | JL Audio -MD1000/1v2 Owner’s Manual... - Page 19 INSTALLATION NOTES:...
- 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.