JL Audio 450/4V2 User Manual

Thank you for purchasing a JL Audio amplifier for your automotive sound system. Your amplifier has been designed and manufactured to exacting standar

18 | JL Audio - 450/4v2 Owner’s Manual 19Crossover setup for bi-amplified 3.1 system with one 450/4v2 and a separate subwoofer amplifier:Once the i

20 | JL Audio - 450/4v2 Owner’s Manual 21C) Subwoofer Level Control OnlyReq uired: a source unit or processor with left, right and dedicated subwoo

22 | JL Audio - 450/4v2 Owner’s Manual 233) 4XJUDIUIFiInput VoltagewUPiLowwBOEUVSOUIFiInput Sens.wDPOUSPMPOCPUITFUTPGchannels all th

24 | JL Audio - 450/4v2 Owner’s Manual 25“My amplifier shuts off once in a while, usually at higher volumes” Check your voltage source and groundi

26 | JL Audio - 450/4v2 Owner’s Manual 27APPENDIX D:450/4v2 SpecificationsGeneral Specifications:Recommended Fuse Value: 60ARecommended Fuse Type:

28 | JL Audio - 450/4v2 Owner’s Manual 29INSTALLATION NOTES:Use this diagram to document your amplifier’s switch and control positions.+12VDC Groun

30 | JL Audio - 450/4v2 Owner’s Manual 31NOTES NOTES

LIMITED WARRANTY  AMPLIFIERS USA+-"6%*0XBSSBOUTUIJTQSPEVDUUPCFGSFFPGEFGFDUTJONBUFSJBMTBOEXPSLNBOTIJQGPSBQFSJPEPGninety (90)

2 | JL Audio - 450/4v2 Owner’s Manual 3Cooling Efficiency Considerations: Your JL Audio amplifier employs an advanced type of heat management, call

4 | JL Audio - 450/4v2 Owner’s Manual 5TYPICAL INSTALLATION SEQUENCEThe following represents the sequence for a typical amplifier installation, usi

6 | JL Audio - 450/4v2 Owner’s Manual 7TURNON LEADThe 450/4v2 uses a conventional +12V remote turn-on lead, typically controlled by the source uni

8 | JL Audio - 450/4v2 Owner’s Manual 92) iFilter Mode/Slopew$POUSPM5IJTTXJUDIallows you to defeat the CH 1&2 filter or select from two f

10 | JL Audio - 450/4v2 Owner’s Manual 111) iInfrasonic Filterw5IFJOGSBTPOJDGJMUFSJTB 24 dB/octave high-pass filter, with a fixed DVUPGGGS

12 | JL Audio - 450/4v2 Owner’s Manual 13STATUS INDICATOR LIGHTS / PROTECTION CIRCUITRYThere are three status indicator lights on the top of the a

14 | JL Audio - 450/4v2 Owner’s Manual 15Crossover Setup for Bi-Amplified System with one 450/4v2:Once the input sections have been DPOGJHVSFEBQQ

16 | JL Audio - 450/4v2 Owner’s Manual 17After proper adjustment of the 450/4v2’s CH 1&2 and CH 3&4, and the subwoofer amplifier’s iInput R