JL Audio 98227 - Manuals

16 | JL Audio - MHD600/4 Owner’s Manual 17 “status” led / ProteCtion CirCuitrY There is a single multi-color LED on the control panel of the amplifier to indicate the amplifier’s operating status. This LED’s behavior is as follows: 1) Flashing Green: amplifier is powering up, audio output is muted. ...

18 | JL Audio - MHD600/4 Owner’s Manual 19 the nine-step Procedure (follow this procedure for each pair of channels) 1) Disconnect the Speaker Connector Plugs. 2) Turn off all processing on the source unit (bass/treble, loudness, EQ, etc.). Set fader control to center position and subwoofer level co...

20 | JL Audio - MHD600/4 Owner’s Manual 21 “my amplifier shuts off once in a while, usually at higher volumes” Check your voltage source and grounding point. The power supply of the MHD600/4 will operate with charging system voltages down to 10V. Shutdown problems at higher volume levels can occur w...