JL Audio Complete Guide to HD900/5 Amplifier Manual and Setup

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owner’s manual

5-Channel Class-D System Amplifier

Thank you for purchasing a JL Audio amplifier for

your automotive sound system.

Your amplifier has been designed and manufactured to exacting

standards in order to ensure years of musical enjoyment in your vehicle.

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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Contents Channel Class-D System Amplifier Planning Your Installation Installation ApplicationsProtect Your Hearing Serial NumberCooling Efficiency Considerations Safety ConsiderationsYour JL Audio amplifier employs an Stupid Mistakes to AvoidAs we said, it’s very flexible Product DescriptionRun power wire from the battery location Typical Installation SequenceConnect the RCA input cables To the amplifier Power Wire Requirements +12V Battery ConnectionFuse Requirements Ground ConnectionAmplifier Power Connector Plug Turn-On WireStandard Mounting HD900/5 has two mounting options to ease in installationLateral Mounting Feet Security cover is secured by a singleCh. Input Mode Input Mode SwitchInput Voltage Switch Amplifier INPuTSInput Sens. Controls Channel Control SectionsInfrasonic Filter Subwoofer Ch. Only Filter Freq. Hz ControlBi-AmpLIFIED SYSTEMS After proper adjustment of the HD900/5’sStandard telephone cable supplied with the HD-RLC REmote level control OptionalMultiple phone cables Speaker OutputsSpeaker Connector Plugs Status LED / Protection Circuitry JL Audio Technical Support Servicing your JL Audio AmplifierChassis Dimensions LxWxH Appendix a HD900/5 SpecificationsCrossover Filters Input SectionsFull-clockwise Appendix C Appendix B  Precise Frequency Selection ChartNecessary Equipment Channels at 3/4 source unit volume Nine-Step ProcedureIncrease the Input Sens. control until My amplifier doesn’t turn on My amplifier turns on, but there is no output INSTALLATION NOTES Page If you need service on your JL Audio product Limited Warranty Amplifiers USAJL Audio, Inc International Warranties