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Owner's Manual
M1400
monoblock marine subwoofer amplifier
OWNER'S MANUAL
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 and extended warranty
coverage, 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
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Summary of Contents for JL Audio M-Series M1400
- Page 1 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...
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Page 2: Protect Your Hearing
Cooling Efficiency Considerations: The outer shell of your JL Audio amplifier is designed to remove heat from the amplifier circuitry. For optimum cooling performance, this outer shell should be exposed to as large a volume of air as possible. -
Page 3: Product Description
PRODUCT DESCRIPTION The JL Audio M1400 is a monoblock 4) Connect negative power wire to the negative subwoofer amplifier utilizing proprietary and battery post. Use the same size power patented Class D technology. Its frequency wire as the wire connected to the “+12V”... -
Page 4: Input Voltage Range
Appendix A (page 12). Doing so will result in audible distortion and possible speaker damage. JL AUDIO M1400 JL AUDIO M1400 Filter Controls Most speakers are not designed to reproduce the full range of frequencies audible by the human ear. -
Page 5: Bass Boost Controls
Keep in mind that turning the internal connect an optional remote boost knob (sold crossover off also defeats the “Bass Boost” separately as JL Audio Model RBC-1) that processing (see next section for details). With can be mounted near the head unit. With the internal crossover turned off, the M1400’s... - Page 6 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 7 Precise Frequency Selection Chart Number Target AC Voltage 4Ω 31.0 V 3Ω 29.7 V 2Ω 28.3 V JL AUDIO M1400 JL AUDIO M1400 APPENDIX C: M1400 Specifications “FILTER FREQ” AMP FILTER General Specifications: Detent Panel Actual Recommended Fuse Value: 40A Marking Freq.
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Page 8: Appendix D: Trouble Shooting
“My amplifier shuts off once in a while, usually at higher volumes” “My amplifier turns on, but there is no output” JL AUDIO M1400 JL AUDIO M1400 Check your voltage source and grounding point. The power supply of the M1400 will operate with charging system voltages down to 10V. -
Page 9: Installation Notes
Use this diagram to document your amplifier’s switch and control positions. CH 1 (Left) Input Voltage Low | High CH 2 (Right) Pre-Outs Bass Boost Controls Bass Boost Power Protect Remote Bass Port JL AUDIO M1400 JL AUDIO M1400 Filter Freq. (Hz) Input Sens. LP Filter... - Page 10 INSTALLATION NOTES: INSTALLATION NOTES: JL AUDIO M1400 JL AUDIO M1400...
- Page 11 LIMITED WARRANTY - AMPLIFIERS (USA) JL AUDIO warrants this product to be free of defects in materials and workmanship for a period of ninety (90) days from the original date of purchase. The warranty term is extended to two (2) years if installation is performed or approved by an authorized JL AUDIO dealer (proof of installation or approval required on purchase receipt).