JL Audio HD900/5 - Manuals - manualsarea.com

Page 3 - cooling efficiency considerations:; safety considerations:

3 cooling efficiency considerations: Your JL Audio amplifier employs an advanced type of heat management, called RealSink™. This feature takes advantage of convection and radiation effects to remove heat from the amplifier circuitry. For optimum cooling performance, the vertical heat sinks located a...

Page 4 - Product descriPtion; The JL Audio HD900/5 is a very powerful

4 | JL Audio - HD900/5 Owner’s Manual Product descriPtion The JL Audio HD900/5 is a very powerful and compact five-channel amplifier utilizing patented Single Cycle Control™ Class D technology for all channels. This groundbreaking technology delivers reference-grade, full-range sonic performance whi...

Page 7 - The HD900/5 uses a conventional +12V remote; amplifier Power connector Plug; To connect the power wires and the remote

7 For optimal grounding, we recommend the use of a JL Audio ECS master ground lug (XB-MGLU). Alternatively, a sheet metal screw or bolt can be used with a star washer. Many vehicles employ small (10 AWG - 6 AWG) wire to ground the battery to the vehicle chassis and to connect the alternator’s positi...

Page 13 - sPeaker outPuts

13 remote leVel control (oPtional) With the addition of the optional Remote Level Control (HD-RLC), you can control the level of the Subwoofer Channel of the HD900/5 from the front of the vehicle. The HD-RLC connects to the jack labeled “Remote Level Control” on the Connection Panel of the amplifier...

Page 14 - bridging considerations; both left; speaker connector Plugs

14 | JL Audio - HD900/5 Owner’s Manual bridging considerations Bridging is the practice of combining the output of two amplifier channels to drive a single load. When bridged, each channel produces signals of equal magnitude, but opposite polarity. The combined output of the two channels provides tw...

Page 15 - “status” led / Protection circuitrY

15 “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. 2) Constant Green : amplifier is on and...

Page 16 - serVicing Your Jl audio amPliFier; If your amplifier fails or malfunctions, please; Jl audio technical support

16 | JL Audio - HD900/5 Owner’s Manual serVicing Your Jl audio amPliFier If your amplifier fails or malfunctions, please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for service. There are no user serviceable parts or fuses inside the amplifier. The unique natur...

Page 17 - Amplifier Topology:

17 aPPendix a:Hd900/5 specifications Amplifier Topology: Class D, switching type with patented Single-Cycle Control™ technology. Power Supply: Pulse width modulation-regulated switching power supply Recommended Fuse Value / Type: 60A (AFS, AGU or MaxiFuse™) Rated Power (Main Channels / Stereo): 100W...

Page 18 - “Filter Freq”

18 | JL Audio - HD900/5 Owner’s Manual aPPendix b: Precise Frequency selection chart “Filter Freq” detent Panel actual number marking Freq. (Hz) Full counter-clockwise: 53 01 . . . . . . . . . . . “50” . . . . . . . . . . . .53 02 . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 03 . . . . ...

Page 19 - the nine-step Procedure; not recommended

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 control to 3/4 of maximum (if used to driv...

Page 21 - to ensure that the speaker wires are making a good

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 HD900/5 will operate with charging system voltages down to 9V. Shutdown problems at higher volume levels can occur when the charging system voltage drops belo...

Page 24 - (do not send product for repair to this address); international warranties:; by that country’s distributor and not by JL Audio, Inc.

limited warrantY - amPliFiers (usa) JL AUDIO warrants this product to be free of defects in materials and workmanship for a period of two (2) years from the original date of purchase. This warranty is not transferable and applies only to the original purchaser from an authorized JL AUDIO dealer. Sho...