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owner’s manual
4-Channel Class-D 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 perf
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Prote Ct Your Hearing! installation aPP liC ations Cooling efficiency Considerations: safety Considerations: We value you as a long-term customer. For This amplifier is designed for operation in Your JL Audio amplifier employs an Your amplifier needs to be installed in a dry, that reason, we urge you to practice restraint in vehicles with 12V, negative-ground electrical advanced type of heat management, called well-ventilated environment and in a manner the operation of this product so as n
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Produ Ct d esCri Ption tYP iCal installation s equen Ce The JL Audio HD600/4 is a very powerful 5) A s a very powerful (300W x 2) two-channel The following represents the sequence for 7) Securely mount the amplifier using and compact four-channel, full-range amplifier satellite amplifier in a bi-amplified system, a typical amplifier installation, using an appropriate hardware. (See page 8 for detailed utilizing patented Single Cycle Control™ delivering high-passed signals to a stereo afterma
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Power and t urn-on Conne Ctions g round Connection The HD600/4’s “Remote” turn-on connector Before installing the amplifier, disconnect the We do not recommend the use of “copper- The chassis ground connection must be is designed to accept 18 AWG – 12 AWG wire. 18 negative (ground) wire from the vehicle’s battery. clad aluminum wire” or “CCA” wire because made using 4 AWG or 8 AWG pure copper AWG is more than adequate for this purpose. This will prevent accidental damage to the system, this
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am Pli Fier mounting o Ptions Con trol P a nel se Curit Y CoV er am PliF ier in Puts CHannel Control se Ctions The HD600/4 has two mounting options to The HD600/4 features a Control Panel Security The HD600/4 has two separate input sections, Flanking the “General Setup” section ease in installation. Cover. When installed, the cover ensures that one for the “Front” left and right channels and on the Control Panel of the amplifer are your amplifier settings are not accidentally another for the
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“input Voltage” switch “input s ens.” Control Crosso Ver Controls A wide range of signal input voltages can Located next to the “Input Voltage” switch Crossovers are groups of electronic filters 2) “ Filter Slope” Control: This switch allows you be accommodated by each of the HD600/4’s in each input section is a rotary control labeled designed to control the frequency ranges to select from two filter slopes. differential-balanced inputs (200mV – 8V RMS). “Input Sens.”. Once the appropriate “In
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bi-a mPli Fied s Ystems bi-a mplified system with one Pream P o utP uts Bi-amplified systems are defined as systems Hd 600/4 in four-channel mode and The HD600/4 incorporates a pass-through 3) “F+R” (Front + Rear): This mode delivers a in which separate amplifier channels drive low- a separate subwoofer amplifier preamp output section, so that additional sum of the signals being fed to the “Front frequency (LF) and high-frequency (HF) speakers This configuration requires that the amplifiers c
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The RBC-1 Remote Bass Control used with If you connect a load higher than 4Ω nominal To bridge a pair of channels, use the “Left +” JL Audio Slash, Slash v2, e-Series, A-Series and per channel in stereo mode (or 8Ω in bridged and “Right –” speaker connectors only G-Series amplifiers is NOT compatible with the mode), power will drop by half with every (the “Left –” and “Right +” remain unused). HD Series amplifiers. If you attempt to connect doubling of impedance above 4Ω stereo / 8Ω The
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“status” led / Prote Ction CirC uitr Y s er ViCing Your J l audio a mPliF ier aPPendix a : There is a single multi-color LED on the 4) A lternating Red and Green: lights to indicate If your amplifier fails or malfunctions, please Hd 600/4 s pecifications control panel of the amplifier to indicate the that the amplifier is experiencing a fault return it to your authorized JL Audio dealer so Amplifier Topology: Class D, switching type with amplifier’s operating status. This LED’s behavior that m
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aPP endix b: aPPendix C: t he n ine-step Procedure Precise Frequency selection Chart input s ensitivity l evel s etting (follow this procedure for each pair of channels) 7) C onnect the AC voltmeter to the “Front JL Audio amplifiers utilizing the Regulated 1) Disconnect the Speaker Connector Plugs. Speaker Outputs” or “Rear Speaker Outputs” “Filter Freq ” Intelligent Power Supply (R.I.P.S.) allow 2) Turn off all processing on the source unit connectors of the amplifier. If the channel pai
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aPP endix d: troubles Hooting “How do i properly set the input sensitivity on my amplifier” Please r efer to Appendix C (pages 18, 19) to set the input sensitivity “my amplifier shuts off once in a while, usually at higher volumes” for maximum, low-distortion output. Check your voltage source and grounding point. The power supply “my amplifier doesn’t turn on” of the HD600/4 will operate with charging system voltages Check t he fuse(s), not just visually, but with a continuity meter. It do
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installation notes : use this diagram to document your amplifier’s switch and control positions. 22 | JL Audio - HD600/4 Owner’s Manual 23
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l imited w arrant Y - a mPli Fiers ( 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. Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction, JL AUDIO will (at its discretion), repair or replace the defective product with new
