JL Audio G4500 owner manual If you have any questions regarding the instructions in this

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owner’s manual

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 If you have any questions regarding the instructions in this Cooling Efficiency Considerations Safety ConsiderationsSerial Number Stupid Mistakes to AvoidProduct Description Power ConnectionsMany vehicles employ small 10 AWG Fuse RequirementsInput Voltage Range Input SectionLow position on the Input Voltage Input Sensitivity ControlsPre-OUTS Bass BOOST CONTROLSSpeaker Outputs Do not do thisSYSTEM CONFIGURATIONS Subwoofer Level Control Only Rear pairs of stereo outputsAppendix B  Precise Frequency Selection Chart Nine-Step ProcedureAppendix C G4500 Specifications General Specifications DimensionsLxWxHMy amplifier turns on, but there is no output My amplifier doesn’t turn onINSTALLATION NOTES If you need service on your JL Audio product Limited Warranty Amplifiers USAJL Audio, Inc International Warranties