OWNER’S MANUAL4-Channel Class-D Full-Range AmplifierThank you for purchasing a JL Audio amplifier for your automotive sound system. Your amplifier ha
18 | JL Audio - HD600/4 Owner’s Manual 19The Nine-Step Procedure (follow this procedure for each pair of channels)1) Disconnect the Speaker Connec
20 | JL Audio - HD600/4 Owner’s Manual 21“My amplifier shuts off once in a while, usually at higher volumes” Check your voltage source and ground
22 | JL Audio - HD600/4 Owner’s Manual 23INSTALLATION NOTES:Use this diagram to document your amplifier’s switch and control positions.
LIMITED WARRANTY AMPLIFIERS USAJL AUDIO warrants this product to be free of defects in materials and workmanship for a period of two (2) years fr
2 | JL Audio - HD600/4 Owner’s Manual 3Cooling Efficiency Considerations: Your JL Audio amplifier employs an advanced type of heat management, call
4 | JL Audio - HD600/4 Owner’s Manual 5TYPICAL INSTALLATION SEQUENCEThe following represents the sequence for a typical amplifier installation, usi
6 | JL Audio - HD600/4 Owner’s Manual 7Ground ConnectionThe chassis ground connection must be made using 4 AWG or 8 AWG pure copper wire and should
8 | JL Audio - HD600/4 Owner’s Manual 9AMPLIFIER INPUTSThe HD600/4 has two separate input sections, one for the “Front” left and right channels and
10 | JL Audio - HD600/4 Owner’s Manual 11CROSSOVER CONTROLSCrossovers are groups of electronic filters designed to control the frequency ranges tha
12 | JL Audio - HD600/4 Owner’s Manual 13PREAMP OUTPUTSThe HD600/4 incorporates a pass-through preamp output section, so that additional amplifiers
14 | JL Audio - HD600/4 Owner’s Manual 15 If you connect a load higher than 4Ω nominal per channel in stereo mode (or 8Ω in bridged mode), power w
16 | JL Audio - HD600/4 Owner’s Manual 17“STATUS” LED / PROTECTION CIRCUITRYThere is a single multi-color LED on the control panel of the amplifier
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