JL Audio J2320.4 owner manual 320W 4-Channel, Full-Range Amplifier

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owner’s manual

320W 4-Channel, Full-Range 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 our Technical Support Department

at (954) 443-1100 during business hours.

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Contents 320W 4-Channel, Full-Range Amplifier Cooling Efficiency Considerations Safety ConsiderationsSerial Number Stupid Mistakes to AvoidProduct Description Power ConnectionsMany vehicles employ small 10 AWG Fuse RequirementsInput Sections Turn-On LeadInput Sensitivity Controls Bass BOost Controls Filter ControlsSpeaker Outputs Pre-OUTSServicing your TMA Amplifier Amplifier Status Indicator Lights & Protection CircuitryLeft + Right Channel Information Do not do thisAppendix B J2-320.4 Specifications General Specifications Nine-Step ProcedureDimensions LxWxH Appendix aMy amplifier turns on, but there is no output My amplifier doesn’t turn onINSTALLATION NOTES INSTALLATION NOTES If you need service on your JL Audio product Limited Warranty Amplifiers USAJL Audio, Inc International Warranties