JL Audio HD600/4 User's Manual
Contents
1. Chassis Ground Front Left amp Right Left amp Right Preamp Front Rear Connector Channel Input Jacks Output Jacks Speaker Outputs Speaker Outputs pgs 6 7 pg 9 pg 13 Jack for pgs 14 15 pgs 14 15 12V Power Remote Turn On Rear Left amp Right Remote Level Connector_ Connector Channel Input Jacks ___ Control Knob pgs 6 7 _ pgs 6 7 pg 9 pg 13 i l l 12VDC Ground Remote L Q L Que One Que One au ipit AR Preouts naaa FRONT SPEAKER OUT REAR SPEAKER OUT Level aw am a a 2 JL Audio HD600 4 Owner s Manual PRODUCT DESCRIPTION The JL Audio HD600 4 is a very powerful and compact four channel full range amplifier utilizing patented Single Cycle Control Class D technology for all channels This groundbreaking technology delivers reference grade sonic performance while requiring far less current from the vehicle s electrical system than a conventional amplifier JL Audio s exclusive R I P S power supply design optimizes the output of each channel pair for any impedance between 1 5 and 4 ohms per channel 3 8 ohms bridged allowing you to get full use of the HD600 4 s performance capabilities with a wide range of speaker systems The tightly regulated power supply design also means that the HD600 4 s clean power output capability remains stable over a w2. channels of the HD600 4 will drive front component speakers stereo 150W x 2 with high pass filtering The Rear channels will drive rear component speakers in stereo 150W x 2 with high pass filtering The separate subwoofer amplifier will drive the subwoofer system with low pass filtering select a filter frequency of 80 90 Hz to start The inputs of the subwoofer amplifier can be fed from the HD600 4 s preamp output or from a dedicated subwoofer output on the source unit Crossover Setup for Bi Amplified System with one HD600 4 and a separate subwoofer amplifier Once the input and preamp output sections have been configured appropriately go to the Front Channel Controls Section Select HP high pass on the Filter Mode switch and 12dB or 24dB on the Filter Slope switch and an appropriate Filter Freq 80 90 Hz is a good starting point Next turn your attention to the Rear Channel Controls Section and select HP high pass on the Filter Mode switch and 12dB or 24dB on the Filter Slope switch and an appropriate Filter Freq again 80 90 Hz is a good starting point After proper adjustment of the HD600 4 s and the subwoofer amplifier s Input Range and Input Sens you can fine tune filter frequencies and slopes and attenuate either pair of channels to achieve proper balance For proper adjustment of the Input Sens
3. octave setting allows for more output overlap between the speakers being crossed over In many cases this will result in a smoother blend or transition between speaker systems Experiment to find the slope or combination of slopes which best matches the acoustic requirements of your system 3 Filter Freq Hz Control This control selects the frequency at which the filter begins to attenuate the signal and refers specifically to the frequency at which output has been attenuated by 3dB The filter frequency markings surrounding this rotary control are for reference purposes and are generally accurate to within 1 3 octave or better If you would like to select the filter cutoff frequency with a higher level of precision consult the charts in Appendix B page 18 of this manual 10 JL Audio HD600 4 Owner s Manual BI AMPLIFIED SYSTEMS Bi amplified systems are defined as systems in which separate amplifier channels drive low frequency LF and high frequency HF speakers and are separately filtered to send appropriate frequency ranges to each speaker system The most common application of bi amplification in mobile audio is to drive a subwoofer system from one or more amplifiers or channels and component speakers from separate amplifiers or channels The HD600 4 can be configured to drive a bi amplified system by itself or with a separate subwoofer amplifier Bi Amplified System with one HD600 4 In t
4. 18 JL Audio HD600 4 Owner s Manual APPENDIX D TROUBLESHOOTING How do I properly set the input sensitivity on my amplifier Please refer to Appendix C pages 18 19 to set the input sensitivity for maximum low distortion output My amplifier doesn t turn on Check the fuse s not just visually but with a continuity meter It is possible for a fuse to have poor internal connections that cannot be found by visual inspection It is best to take the fuse out of the holder for testing If no problem is found with the fuse inspect the fuse holder Check the integrity of the connections made to each of the 12VDC Ground and Remote terminals Ensure that no wire insulation is pinched by the terminal set screw and that each connection is tight Check to make sure there is 12V at the Remote connection of the amplifier In some cases the turn on lead from the source unit is insufficient to turn on multiple devices and the use of a relay is required To test for this problem jump the 12VDC wire to the Remote terminal to see if the amplifier turns on get a distorted attenuated sound coming out of the speaker s Check the speaker wires for a possible short either between the positive and negative leads or between either speaker lead and the vehicle s chassis ground If a short is present you will experience distorted and or attenuated output The Status LED will turn a
5. It may also be necessary to upgrade the ground wire connecting the battery to the vehicle s chassis and the power wire connecting the alternator to the battery Many vehicles employ small 10 AWG 6 AWG wire to ground the battery to the vehicle s chassis and to connect the alternator to the battery To prevent voltage drops these wires should be upgraded to 4 AWG when installing amplifier systems with main fuse ratings above 60A Grounding problems are the leading cause of misdiagnosed amplifier failures My amplifier turns on but there is no output Check the input signal using an AC voltmeter to measure the voltage from the source unit while an appropriate test tone is played through the source unit disconnect the input cables from the amplifier prior to this test The frequency used should be in the range that is to be amplified by the amplifier example 50 Hz for a sub bass application or 1 kHz for a full range high pass application A steady sufficient voltage between 200mV and 8 0 volts should be present at the output of the signal cables Check the output of the amplifier Using the procedure explained in the previous check item after plugging the input cables back into the amplifier test for output at the speaker outputs of the amplifier Unless you enjoy test tones at high levels it is a good idea to remove the Speaker Connector Plugs from the amplifier while doing this Turn the volume up approximately ha
6. The installation of a fuse on the main power wire within 18 wire inches 45 cm of the positive battery terminal is vital to protect the wire and the vehicle from fire in the event of a collision or short circuit The fuse value at each power wire should be just high enough for all of the equipment being run from that power wire Do not use a fuse with a value that far exceeds the total fuse rating of the electronics connected to the wire If only the HD600 4 is being run from that power wire we recommend a 50A fuse be used AGU big glass fuse AFS small blade fuse or MaxiFuse big plastic body fuse types are recommended If other amplifiers are also being powered from the wire and exceed 80 amps in total fuse rating we recommend the use of an ANL large blade fuse and holder Please consult with your JL Audio dealer to make sure that the wire fuse holder and fuse rating you have selected are appropriate for your system s needs If other amplifiers are also being powered from a main power wire and exceed 80 amps in total fuse rating we recommend the use of an ANL large blade fuse and holder Each amplifier can then be fused independently at the outputs of the power distribution block Use JL Audio part XC FOA 2PAK and appropriate MaxiFuse type fuses with JL Audio distribution blocks Please consult with your JL Audio dealer to make sure that the wire fuse holder and fuse ratings are appropriate for your system s nee
7. distortion and or undesirable noise in the audio output of the amplifier Note The Channel Control sections also house Filter Mode Filter Slope and Filter Freq controls These are crossover filter controls and will be discussed in the next section of this manual This section will explain the Input Controls only Input Voltage Switch A wide range of signal input voltages can be accommodated by each of the HD600 4 s differential balanced inputs 200mV 8V RMS This wide range is split up into two sub ranges accessible via the Input Voltage switches located in each input section of the amplifier Be aware that each input section s Input Voltage switch will have to be configured regardless of how many input cables are actually feeding the amplifier The Low position on each Input Voltage switch selects an input sensitivity range between 200mV and 2V This means that the Input Sens rotary control will operate within that voltage window If you are using an aftermarket source unit with preamp level outputs this is most likely the position that you will use regardless of what voltage output capability is claimed by the source unit The High position on each Input Voltage switch selects an input sensitivity range between 800mV and 8V This is for use with speaker level outputs from source units and small amplifiers found in many OEM factory installed system
8. secure the screw using the supplied 2 5 mm hex wrench Do not overtighten the screw nT Lateral Mounting Feet are also included with your HD600 4 to provide an alternative mounting option Each mounting foot should be attached to the bottom of the amplifier by screwing the provided bolt into the bottom of the amplifier and up into the corner cap with the supplied 1 8 inch hex wrench Next using appropriate mounting screws not included secure the amplifier by its four Lateral Mounting Feet IMPORTANT Check before drilling any holes in your vehicle to make sure that you will not be drilling through a gas tank brake line wiring harness or other vital vehicle system 8 JL Audio HD600 4 Owner s Manual AMPLIFIER INPUTS The HD600 4 has two separate input sections one for the Front left and right channels and another for the Rear left and right channels Each section consists of a pair of RCA type input jacks on the Connection Panel of the amplifier and a pair of input controls on the Control Panel of the amplifier an Input Voltage switch and an Input Sens rotary control EN wote L Front Inputs Rear I R INPUT MODE SWITCH The Control Panel houses an Input Mode switch located under the General Setup heading This switch allows operation of all four amplifier channels with only one pair of input signals or with independent front and
9. stereo 80 mono If you connect a load lower than 1 50 nominal per channel in stereo mode or 30 in bridged mode the amplifier protection circuitry activates a safe mode which reduces amplifier power to protect the circuitry from failure the LED status indicator on the control panel will light up amber to indicate that this has happened See page 16 for details B IMPORTANT Speaker loads below 1 50 nominal per channel in stereo or 3Q nominal in bridged mode are not recommended and may cause the amplifier output to distort excessively 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 twice the output voltage available from a single channel The HD600 4 has been designed for bridging of its channel pairs without the need for input inversion adaptors Ove ORG ONG ORO FRONT SPEAKER OUT REAR SPEAKER OUT 0000 0000 To bridge a pair of channels use the Left and Right speaker connectors only the Left and Right remain unused Then connect a mono signal to both left and right RCA inputs for that channel pair This requires an RCA Y Adaptor sold separately because a bridged pair of channels requires that both amplifier channels of the bridg
10. to strip the head of the screw B IMPORTANT Never make power connections with a live wire Always disconnect the negative battery post before making any connections or adjustments to a 12V power connection AMPLIFIER MOUNTING OPTIONS The HD600 4 has two mounting options to ease in installation Standard Mounting The standard method of mounting requires removal of the four corner caps with the 3 16 inch hex wrench included with your amplifier Using appropriate mounting screws not included secure the amplifier in all four corners and replace the corner caps Lateral Mounting Feet CONTROL PANEL SECURITY COVER The HD600 4 features a Control Panel Security Cover When installed the cover ensures that your amplifier settings are not accidentally changed while creating a clean aesthetic for the amplifier and your installation The control panel security cover is pre installed at the factory and must be temporarily removed for access to the controls described throughout this manual The security cover is secured by a single 2 5 mm hex head screw at the far right of the panel Loosen the hex head screw to release the security cover it is not necessary to completely remove the screw To re install the security cover once all adjustments have been made insert the tongue on the cover s left edge into the groove where the left side heatsink meets the control panel hinge the panel closed and
11. to an HD amplifer the control will not work You must use the HD RLC controller SPEAKER OUTPUTS The HD600 4 employs JL Audio s exclusive Regulated Intelligent Power Supply R LP S design The operation of the R I P S system is independent for each pair of channels This sophisticated power supply allows the amplifier to produce its optimum power 150 watts x 4 over a wide range of speaker impedances Que Ong Que One FRONT SPEAKER OUT REAR SPEAKER OUT Unlike conventional amplifiers that require a specific impedance to produce optimum power the R I P S equipped HD600 4 gives you the freedom to use a variety of speaker configurations that achieve final nominal impedances between 1 5 4Q per channel in stereo without sacrificing power output or sound quality When bridged each channel pair will optimize output at 300 watts between 3 80 The operation of the R I P S circuitry is entirely automatic and adjusts itself every time the amplifier is turned on There are no user controls to configure The system operates through multiple stages of impedance optimization choosing the stage most appropriate to the actual impedance of the speakers you connect to it 14 JL Audio HD600 4 Owner s Manual Ea IMPORTANT If you connect a load higher than 40 nominal per channel in stereo mode or 80 in bridged mode power will drop by half with every doubling of impedance above 40
12. 60 O a IO ee 74 AOE E EA 91 P ETE 211 BS arras 250 236 DA pokabanausu pag yerer sinned 269 E E E aie 309 EEE PERETE EES ATA 369 OF EE AS 443 BB E 500 484 EE IAEA 525 Full clockwise 528 APPENDIX C Input Sensitivity Level Setting JL Audio amplifiers utilizing the Regulated Intelligent Power Supply R I P S allow delivery of their rated power when connected to any load impedance from 1 5 4Q per channel and when connected to a charging system with any voltage from 11 14 5V This design is beneficial for many reasons One of these reasons is ease of setup Because each JL Audio amplifier will always deliver the same amount of power within its operational range of impedances and supply voltages the maximum unclipped output is very predictable This makes setting the gain structure via the input sensitivity controls very simple Following the directions below will allow the user to adjust the input sensitivity of the amplifier s simply and easily in just a few minutes using equipment which is commonly available in installation bays Necessary Equipment e Digital AC Voltmeter e CD with a sine wave test tone recorded at 0 dB reference level in the frequency range to be amplified for that set of channels 50 Hz for subwoofer channels 1 kHz for a midrange application The CleanSweep Calibration Disc contains the appropriate test tones and is available for sale at http store jlaudio com Do not
13. Connect the speaker wires to the speaker connector plugs and insert the plugs firmly into the speaker connector receptacles 11 Carefully review the amplifier s control settings to make sure that they are set according to the needs of the system 12 Install power wire fuse 50A for a single HD600 4 and reconnect the negative battery post terminal 13 Turn on the source unit at a low level to double check that the amplifier is configured correctly Resist the temptation to crank it up until you have verified the control settings 14 Make necessary adjustments to the input sensitivity controls to obtain the right overall output and the desired balance in the system See Appendix C pages 18 19 for the recommended input sensitivity setting method 15 Enjoy the fruits of your labor with your favorite music POWER AND TURN ON CONNECTIONS Before installing the amplifier disconnect the negative ground wire from the vehicle s battery This will prevent accidental damage to the system the vehicle and your body during installation F 12VDC Ground Remote gt POWER CONNECTOR pront OOD 12V Battery Connection You will need to connect a power wire to the vehicle s positive battery terminal using an appropriate power ring or specialized battery terminal connector such as the JL Audio XB BTU This connection must be tight and corrosion free to ensure proper conn
14. 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 nature of the circuitry in the JL Audio amplifiers requires specifically trained service personnel Do not attempt to service the amplifier yourself or through unauthorized repair facilities This will not only void the warranty but may result in the creation of more problems within the amplifier If you have any questions about the installation or setup of the amplifier not covered in this manual please contact your dealer or technical support JL Audio Technical Support 954 443 1100 9 00 AM 5 30 PM Eastern Time Zone Monday Friday APPENDIX A HD600 4 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 50A AFS AGU or MaxiFuse Rated Power Stereo 150W RMS x 4 1 5 4Q 11V 14 5V Rated Power Bridged 300W RMS x 2 3 80 11V 14 5V THD at Rated Power lt 0 03 40 per channel Average at 1 kHz Signal to Noise Ratio 20 kHz Bandwidth Referred to Rated Power 110 dBA Referred to 1 Watt 88 2 dBA Frequency Response 6 Hz 30 kHz 0 1dB Damping Factor 300 40 per ch 50 Hz 150 20 per ch 50 Hz Crosso
15. OWNER S MANUAL FIGOO 44 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 performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures If you have any questions regarding the instructions in this manual or any aspect of your amplifier s operation please contact your authorized JL Audio dealer for assistance If you need further assistance please call the JL Audio Technical Support Department at 954 443 1100 during business hours PROTECT YOUR HEARING We value you as a long term customer For that reason we urge you to practice restraint in the operation of this product so as not to damage your hearing and that of others in your vehicle Studies have shown that continuous exposure to high sound pressure levels can lead to permanent irreparable hearing loss This and all other high power amplifiers are capable of producing such high sound pres
16. 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 or remanufactured product at no charge Damage caused by the following is not covered under warranty accident misuse abuse product modification or neglect failure to follow installation instructions unauthorized repair attempts misrepresentations by the seller This warranty does not cover incidental or consequential damages and does not cover the cost of removing or reinstalling the unit s Cosmetic damage due to accident or normal wear and tear is not covered under warranty Warranty is void if the product s serial number has been removed or defaced Any applicable implied warranties are limited in duration to the period of the express warranty as provided herein beginning with the date of the original purchase at retail and no warranties whether express or implied shall apply to this product thereafter Some states do not allow limitations on implied warranties therefore these exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state If you need service on your JL AUDIO product All warranty returns should be sent to JL AUDIO s Amplifier Service Faci
17. controls of the HD600 4 use the method shown in Appendix C pages 18 19 For precise filter frequency information for the HD600 4 refer to Appendix B pages 18 Refer to the subwoofer amplifier owner s manual for its proper adjustment levels 12 JL Audio HD600 4 Owner s Manual PREAMP OUTPUTS The HD600 4 incorporates a pass through preamp output section so that additional amplifiers can easily be connected to the same signal s feeding the HD600 4 These preamp output signals are accessible via a stereo pair of RCA type jacks labeled Preouts on the Connection Panel on Preouts Remot Level Contre R The term pass through refers to the fact that the Preamp Output signals are not affected by any crossover filter or input sensitivity setting selected on the HD600 4 if the input signal is full range the Preamp Output will be full range These preamp output signals are buffered to prevent noise and are always preamp level regardless of the level of signals feeding the HD600 4 s inputs The pass through Preamp Outputs can be configured two different ways using the switch labeled Preouts From in the General Setup section of the Control Panel A i A 2Ch 4Ch All Ch Rear Ch Front F R Input Remote Preouts Mode Level Control From L GENERAL SETUP 4I lo HDOGOO 4 Four Channel Ar 1 Front The preamp output delivers the same signal that is connected
18. ds The safety of your installation depends on appropriate power connections and fuse protection 6 JL Audio HD600 4 Owner s Manual Ground Connection The chassis ground connection must be made using 4 AWG or 8 AWG pure copper wire and should be kept as short as possible while accessing a solid piece of sheet metal in the vehicle The surface of the sheet metal should be sanded at the contact point to create a clean metal to metal connection between the chassis and the termination of the ground wire with a brass or copper power ring 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 ER IMPORTANT Many vehicles employ small 10 AWG 6 AWG wire to ground the battery to the vehicle chassis and to connect the alternator s positive connection to the battery To prevent voltage drops these wires should be upgraded to 4 AWG pure copper wire when installing amplifier systems with main fuse ratings above 60A Turn On Wire The HD600 4 uses a conventional 12V remote turn on wire typically controlled by the source unit s remote turn on output The amplifier will turn on when 12V is present at its Remote input and turn off when 12V is switched off If a source unit does not have a dedicated remote turn on output the amplifier s turn on lead can be connected to 12V via a switch that derives power
19. e which can result in severe damage to your vehicle and person e Protect all system wires from sharp metal edges and wear by carefully routing them tying them down and using grommets and loom where appropriate Do not mount the amplifier in the engine compartment under the vehicle on the roof or in any other area that will expose the amplifier circuitry to the elements Power Status Filter Slope Input Sensitivity Input Mode Preouts From Input Sensitivity Filter Slope Indicator Selection Control Selection Selection Control Selection pg 16 pg 11 pg 10 P9 9 Remote Level P9 13 pg 10 pg 11 Filter Mode Filter Frequency Input Voltage Control Input Voltage Filter Frequency Filter Mode Selection Selector Selection Selection Selection Selector Selection pg 11 pg 11 pg 10 pg 13 pg 10 pg 11 pg 11 O E EQO ff f18 Q m Of HP LP 12dB 24dB 60 Low High 2Ch 4Ch All Ch RearCh Front F R Low High 60 12dB 24dB8 Off HP LP O Filter Filter 50 Input Input Input Remote Preouts Input Input 50 Filter Filter Oo Mode Slope Filter Freq Hz Sens Voltage Mode Level Control From Voltage Sens Filter Freq Hz Slope Mode Status _______ REAR CHANNEL CONTROLS __ GENERAL SETUP 1 L FRONT CHANNEL CONTROLS JL AUDIO HOGOO 4 Four Channel Amplifier KS
20. ectivity This wire MUST be fused appropriately for safety Any positive power wires run through metal barriers such as firewalls must be protected with a high quality insulating grommet to prevent damage to the insulation of the wire Failure to do so may result in a dangerous short circuit Power Wire Requirements The HD600 4 s 12 VDC and Ground connections are designed to accept 4 AWG power wire 4 AWG pure copper wire is recommended for any power wire run longer than 72 inches 180 cm For runs shorter than 72 inches 8 AWG pure copper power wire is acceptable If you are installing the HD600 4 with other amplifiers and wish to use a single main power wire use 2 AWG or 1 0 AWG pure copper wire as a main power wire This 2 AWG or 1 0 AWG power wire should terminate into a distribution block mounted as close to the amplifiers as possible and should connect to the HD600 4 with 4 AWG or 8 AWG pure copper power wire Please note that lower AWG numbers mean bigger wire and vice versa 1 0 AWG is the largest 2 AWG is smaller then 4 AWG then 8 AWG etc E IMPORTANT We do not recommend the use of copper clad aluminum wire or CCA wire because this wire is significantly less conductive than pure copper wire Only use pure copper power wire such as JL Audio s MetaWire Tinned copper wire silver color is acceptable as the tin plating is only a very minor component of the wire Fuse Requirements
21. ed pair receive input Connection of only one RCA input will result in reduced power output increased distortion and can cause the amplifier to overheat When bridged each channel pair will deliver optimum power into a 3 80 load Operating bridged channel pairs into a load lower than 3Q is not recommended Speaker Connector Plugs To connect the speaker wires to the amplifier unplug the speaker connector plugs from the amplifier chassis pull back firmly and back out the set screws on each connector plug using the supplied 2 0 mm hex wrench Strip 3 8 inch 10 mm of insulation from the end of each wire and insert the bare wire into the receptacle on the speaker connector plug seating it firmly so that no bare wire is exposed While holding each wire in place tighten each set screw firmly taking care not to strip the head of the screw 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 functioning normally audio output is active 3 Constant Red lights to indicate that the amplifier has exceeded its safe operating temperature putting the amplifier into a self protection mode which reduces the peak power output of the amplifier The red light will turn green and
22. f Defeats the filter completely allowing the full range of frequencies present at the inputs to feed that pair of channels This is useful for systems utilizing outboard crossovers or requiring full range reproduction from that pair of channels HP High Pass Configures the CH 1 amp 2 filter to attenuate frequencies below the selected filter frequency Useful for connection of component speakers in a bi amplified system LP Low Pass Attenuates frequencies above the selected filter frequency Useful for connection of subwoofer s in a bi amplified system 2 Filter Slope Control This switch allows you to select from two filter slopes 12dB Configures the filter to attenuate frequencies above or below the selected filter frequency at a rate of 12 dB per octave Butterworth alignment 24dB Configures the filter to attenuate frequencies above or below the selected filter frequency at a rate of 24 dB per octave Linkwitz Riley alignment Depending on the speaker system and the vehicle different filter slopes may be required to produce a smooth transition between the sound of different speakers in the system In high pass mode the sharper 24dB setting will do a better job of protecting small speakers with limited power handling In low pass mode the 24dB setting can also help by more aggressively removing lower midrange output from a subwoofer system The shallower 12dB
23. from an ignition switched circuit The HD600 4 s Remote turn on connector is designed to accept 18 AWG 12 AWG wire 18 AWG is more than adequate for this purpose To connect the remote turn on wire to the amplifier first back out the set screw on the bottom of the Power Connector Plug using the supplied hex wrench Strip 1 2 inch 12mm of wire and insert the bare wire into the receptacle seating it firmly so that no bare wire is exposed When using smaller wire it may be necessary to strip 1 inch of insulation from the wire and fold the bare wire in half prior to insertion While holding the wire in the terminal tighten the set screw firmly using the supplied 2 5 mm hex wrench taking care not to strip the head of the screw and making sure that the wire is firmly gripped by the set screw Amplifier Power Connector Plug To connect the power wires and the remote turn on wire to the amplifier unplug the power connector plug from the amplifier chassis pull back firmly and back out the set screws on the connector plug using the supplied 4 mm hex wrench for the 12 VDC and Ground connections and the supplied 2 5 mm hex wrench for the Remote connection Strip 3 8 inch 10 mm of insulation from the end of each wire and insert the bare wire into the receptacle on power connector plug seating it firmly so that no bare wire is exposed While holding each wire in place tighten each set screw firmly taking care not
24. his configuration the Rear channels of the HD600 4 will drive subwoofers stereo 150W x 2 or bridged 300W x 1 with low pass filtering The Front channels will drive component speakers in stereo 150W x 2 with high pass filtering Crossover Setup for Bi Amplified System with one HD600 4 Once the input sections have been configured appropriately go to the Rear Channel Controls Section Select LP low pass on the Filter Mode switch and 12dB or 24dB on the Filter Slope switch and an appropriate Filter Freq 80 90 Hz is a good starting point Next turn your attention to the Front Channel Controls Section and select HP high pass on the Filter Mode switch and 12dB or 24dB on the Filter Slope switch and an appropriate Filter Freq again 80 90 Hz is a good starting point After proper adjustment of the Front and Rear channel Input Range and Input Sens controls using the method shown in Appendix C pages 18 19 you can fine tune filter frequencies and slopes and attenuate either pair of channels to achieve proper balance For precise filter frequency information refer to Appendix B page 18 Bi Amplified System with one HD600 4 in four channel mode and a separate subwoofer amplifier This configuration requires that the separate subwoofer amplifier has a built in low pass filter In this configuration the Front
25. ide range of vehicle voltages resulting in enhanced fidelity The HD600 4 flexible studio grade signal processing allows it to be deployed in a wide range of system applications 1 As a four channel 150W x 4 full range amplifier delivering full range signals to two separate stereo speaker systems front and rear for example 2 As a powerful 150W x 4 four channel satellite amplifier in a bi amplified system delivering high passed signals to front and rear speaker systems Preamp outputs permit connection of a separate amplifier to drive the subwoofer system 3 As a 600W full system amplifier in bi amplified mode with one channel pair driving subwoofers in low pass mode 150W x 2 or 300W x 1 and the other channel pair driving main speakers in high pass mode 150W x 2 4 As a very powerful 300W x 2 full range amplifier delivering full range signals to a stereo speaker system 5 As a very powerful 300W x 2 two channel satellite amplifier in a bi amplified system delivering high passed signals to a stereo speaker system Preamp outputs permit connection of a separate amplifier to drive the subwoofer system 6 As a powerful 300W x 2 two channel subwoofer amplifier in a bi amplified system delivering low passed signals to a dual subwoofer system Preamp outputs permit connection of a separate amplifier to drive the satellite speakers The HD600 4 s flexible input and crossover sections permit operation w
26. ith a wide variety of source units and system configurations It can be operated with a single pair of stereo inputs or with separate inputs for its front and rear channels The HD600 4 s preamp output can send pass through signals from the Front Inputs only or it can sum all four input channels to feed a non fading signal to a separate subwoofer amplifier As we said it s very flexible 4 JL Audio HD600 4 Owner s Manual TYPICAL INSTALLATION SEQUENCE The following represents the sequence for a typical amplifier installation using an aftermarket source unit or OEM Interface processor like the CleanSweep CL441dsp Additional steps and different procedures may be required in some applications If you have any questions please contact your authorized JL Audio dealer for assistance 1 Disconnect the negative battery post connection and secure the disconnected cable to prevent accidental re connection during installation This step is not optional 2 Run power wire from the battery location to the amplifier mounting location taking care to route it in such a way that it will not be damaged and will not interfere with vehicle operation 4 AWG is recommended for wire runs greater than 72 inches 180 cm in length Use of 8 AWG power wire is acceptable for shorter runs such as from a power distribution block to the amplifier or from a trunk mounted battery Use a 2 AWG or 1 0 AWG main power wire with a power distribu
27. itivity adjustment according to the nominal impedance of the speaker system connected to each set of outputs 6 Verify that you have disconnected the Speaker Connector Plugs before proceeding Play a track with an appropriate sine wave within the frequency range to be amplified by each set of channels at 3 4 source unit volume Nom FRONT CHANNELS 7 Connect the AC voltmeter to the Front Speaker Outputs or Rear Speaker Outputs connectors of the amplifier If the channel pair is operating in stereo it is only necessary to measure one channel in the pair If bridged make sure you test the voltage at the correct connectors L and R 8 Increase the Input Sens control until the target voltage is delivered for that set of channels If excessive voltage is read on either set of channels with the control at minimum full counterclockwise switch the appropriate Input Voltage switch to High and re adjust 9 Once you have adjusted each set of channels to its maximum unclipped output level reconnect the speaker s The Input Sens controls can now be adjusted downward if either or both sets of channels requires attenuation to achieve the desired system balance REAR CHANNELS 80 24 5V 245V 49 0V 60 24 5V 24 5V 424V 40 24 5V 24 5V 34 6 V 30 21 2V 21 2V 30 0V 20 IW not recommended 173V not recommended 1 50 15 0V not recommended 15 0V not recommended
28. lSink 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 at the sides of the amplifier should be exposed to as large a volume of air as possible Enclosing the amplifier in a small poorly ventilated chamber can lead to excessive heat build up and degraded performance If an installation calls for an enclosure around the amplifier we recommend that this enclosure be ventilated with the aid of a fan In normal applications fan cooling is not necessary If mounting the amplifier under a seat make sure there is at least 1 inch 2 5 cm of space above the amplifier s outer shell to permit proper cooling Safety Considerations Your amplifier needs to be installed in a dry well ventilated environment and in a manner which does not interfere with your vehicle s safety equipment air bags seat belt systems ABS brake systems etc You should also take the time to securely mount the amplifier using appropriate hardware so that it does not come loose in the event of a collision or a sudden jolt to the vehicle Stupid Mistakes to Avoid e Check before drilling any holes in your vehicle to make sure that you will not be drilling through a gas tank brake line wiring harness or other vital vehicle system e Do not run system wiring outside or underneath the vehicle This is an extremely dangerous practic
29. lf way 5V or more should be measured at the speaker outputs This output level can vary greatly between amplifiers but it should not be in the millivolt range with the source unit at half volume If you are reading sufficient voltage check your speaker connections as explained below Check to ensure that the speaker wires are making a good connection with the metal inside the Speaker Connector Plugs The speaker wire connectors are designed to accept up to 12 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside each terminal 21 INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions H moO Cie aea O JL AUDIO HD600 4 Four Channel Amplifier 101 80 251 501 60 50 Filter Freq Hz Off HP LP 12dB 24dB Low High 2Ch 4Ch AllCh RearCh Front F R Low High Filter Filter Input Input Input Remote Preouts Input Mode Slope Filter Freq Hz Sens Voltage Mode Level Control From Voltage Status REAR CHANNEL CONTROLS L GENERAL SETUP L FRONT CHANNEL CONTROLS 22 JL Audio HD600 4 Owner s Manual 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
30. lity freight prepaid through an authorized JL AUDIO dealer and must be accompanied by proof of purchase a copy of the original sales receipt Direct returns from consumers or non authorized dealers will be refused unless specifically authorized by JL AUDIO with a valid return authorization number Warranty expiration on products returned without proof of purchase will be determined from the manufacturing date code Coverage may be invalidated as this date is previous to purchase date Non defective items received will be returned freight collect Customer is responsible for shipping charges and insurance in sending the product to JL AUDIO Freight damage on returns is not covered under warranty For Service Information in the U S A please call JL Audio Customer Service 954 443 1100 9 00 AM 5 30 PM Eastern Time Zone JL Audio Inc 10369 North Commerce Pkwy Miramar FL 33025 do not send product for repair to this address International Warranties Products purchased outside the United States of America are covered only by that country s distributor and not by JL Audio Inc Single Cycle Control U S Patent 6 084 450 is used under exclusive license for mobile audio from Power Physics Inc Newport Beach CA HD600 4MAN CH 072109
31. ll also turn off The amplifier will turn back on automatically when voltage climbs back above 9 volts This shut down and turn on behavior may happen in a rapid cycle when bass heavy program material causes a weak charging system to momentarily dip too low If this is happening in your system have your charging system inspected to make sure it is working properly If no problem is found with the supply voltage to the amplifier and you are still seeing alternating Red and Green on the Status LED it is likely that the amplifier is suffering from an internal fault that requires factory service For more information on troubleshooting this amplifier refer to Appendix D pages 20 21 There is only one condition that will shut down an undamaged HD600 4 completely If battery voltage drops below 10 volts the entire amplifier will shut itself off to protect itself and the vehicle s charging system The Status LED will turn off when this occurs The amplifier will turn back on when voltage climbs back above 11 volts This may happen in a rapid cycle when bass heavy program material causes a weak charging system to dip below 10 volts momentarily If this is happening in your system have your charging system inspected to make sure it is working properly For information on troubleshooting this amplifier refer to Appendix D pages 20 21 16 JL Audio HD600 4 Owner s Manual SERVICING YOUR JL AUDIO AMPLIFIER
32. mber yellow in this situation It may be helpful to disconnect the speaker wires from the amplifier and use a different set of wires connected to a test speaker Check the nominal load impedance to verify that each channel of the amplifier is driving a load equal to or greater than 1 5 ohms in stereo mode 3 ohms bridged Check the input signal and input signal cables to make sure signal is present at the Amplifier Inputs and the cables are not pinched or loose It may be helpful to try a different set of cables and or a different signal source to be sure My ampilifier s output fluctuates when I tap on it or hit a bump Check the connections to the amplifier Make sure that the insulation for all wires has been stripped back far enough to allow a good contact area inside the connector plugs Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier 20 JL Audio HD600 4 Owner s Manual My amplifier shuts off once in a while usually at higher volumes Check your voltage source and grounding point The power supply of the HD600 4 will operate with charging system voltages down to 10V Shutdown problems at higher volume levels can occur when the charging system voltage drops below 10V These dips can be of very short duration making them extremely difficult to detect with a common DC voltmeter To ensure proper voltage inspect all wiring and termination points
33. rates as follows At full counter clockwise rotation the audio will mute completely At full clockwise rotation the level will be the same as if the HD RLC was not connected at all In other words it operates strictly as a level attenuator Depending on the application you may want the HD RLC to only affect one channel pair or both channel pairs A switch labeled Remote Level Control in the General Setup Section of the Control Panel allows you to determine whether the HD RLC affects the level of all channels All Ch or only the rear channels Rear Ch _ a4 2Ch 4Ch AllCh RearCh Front F R Input Remote Preouts Mode Level Control From L GENERAL SETUP 4 10 HD6OO 4 Four Channel Ai For example if you are using the HD600 4 in a stand alone bi amplified mode you may want the HD RLC to only affect the level of the subwoofer channels Setting the Remote Level Control switch to the Rear Ch position accomplishes this provided the subwoofer system is connected to the rear channels In other cases you may want control of all four channels at the same time so you would set the Remote Level Control switch to the All Ch position EMPORTANT The RBC 1 Remote Bass Control used with JL Audio Slash Slash v2 e Series A Series and G Series amplifiers is NOT compatible with the HD Series amplifiers If you attempt to connect an RBC 1
34. rear input signal pairs l m E jh 2Ch 4Ch AICI Input R e Mode Levi L GENE DIO HD600 4 To use separate inputs for the Front and Rear amplifier sections in order to permit front to rear fading for example select 4 Ch on the Input Mode switch In this mode you must connect separate pairs of input cables to the Front and Rear amplifier inputs To operate all four channels of the HD600 4 with a single pair of stereo inputs select the 2 Ch position on the Input Mode switch and connect a single pair of input cables to the Front input jacks only In this mode the amplifier will route the signals connected to the Front inputs to the Front and Rear amplifier channels CHANNEL CONTROL SECTIONS Flanking the General Setup section on the Control Panel of the amplifer are two sets of identical controls one for the Rear Channel Controls on the left side and one for the Front Channel Controls of the amplifier on the right side In each of these sections you will find an Input Voltage range switch and a rotary control labeled Input Sens Input Sensitivity These controls are designed to match the input sensitivity of the HD600 4 to the specific signal source that is feeding it and must be adjusted with care following the procedures outlined in this manual Failure to make correct adjustments can result in weak output excessive
35. s To use speaker level sources splice the speaker output wires of the source unit or small amplifier onto a pair of RCA plugs for each input pair or use the JL Audio ECS Speaker Wire to RCA adaptor XB CLRAIC2 SW a IMPORTANT The output of the amplifier decreases for a given input voltage when the Input Range switch is placed in the High position The output increases with the switch in the Low position While this may sound counter intuitive it is correct as described Input Sens Control Located next to the Input Voltage switch in each input section is a rotary control labeled Input Sens Once the appropriate Input Voltage range has been selected this control can be used to match the source unit s output voltage to the input stage of each pair of amplifier channels for maximum clean output Rotating the control clockwise will result in higher sensitivity louder for a given input voltage Rotating the control counter clockwise will result in lower sensitivity quieter for a given input voltage To properly set each pair of amplifier channels for maximum clean output please refer to Appendix C pages 18 19 in this manual After using this procedure you can then adjust the relative level of each channel pair by adjusting the input sensitivity downward on either or both channel pairs if they require attenuation to achieve the desired system balance Do not increase the Inp
36. sure levels when connected to a speaker system Please limit your continuous exposure to high volume levels While driving operate your audio system in a manner that still allows you to hear necessary noises to operate your vehicle safely horns sirens etc SERIAL NUMBER In the event that your amplifier requires service or is ever stolen you will need to have a record of the product s serial number Please take the time to enter that number in the space provided below The serial number can be found on the bottom panel of the amplifier and on the amplifier packaging Serial Number INSTALLATION APPLICATIONS This amplifier is designed for operation in vehicles with 12V negative ground electrical systems Use of this product in vehicles with positive ground and or voltages other than 12V may result in damage to the product and will void the warranty This product is not certified or approved for use in aircraft Do not attempt to bridge the outputs of this amplifier with the outputs of a second amplifier including an identical one PLANNING YOUR INSTALLATION It is important that you take the time to read this manual and that you plan out your installation carefully The following are some considerations that you must take into account when planning your installation Cooling Efficiency Considerations Your JL Audio amplifier employs an advanced type of heat management called Rea
37. the amplifier will return to full power operating mode when its temperature returns to a safe level 3 Constant Amber yellow lights to indicate that the impedance of the speaker load connected to the amplifier is lower than the optimum load impedance range for the amplifier When this light is on a protection circuit engages and reduces the power output of the Front or the Rear channels depending on which channel is experiencing the problem The amber indicator will also light when a short circuit is detected in the speaker wiring this can be a short between the positive and negative speaker wires or between either speaker wire and the vehicle chassis This can be used to diagnose a short circuit by only connecting one of the amplifier sections at a time Front or Rear channels The amber LED will light when you connect the section that is experiencing the problem and turn the volume up 4 Alternating Red and Green lights to indicate that the amplifier is experiencing a fault that may require service of the amplifier its wiring or the vehicle s charging system Audio is muted when this fault occurs The most likely cause of this fault is a low supply voltage condition If battery voltage drops below 8 5 volts at any point the amplifier except for the Status LED will shut itself off to protect itself and the vehicle s charging system If the voltage drops below 6 volts the Status LED wi
38. tion block when additional amplifiers are being installed with the HD600 4 and powered from the same main power wire 3 Connect power wire to the positive battery post Fuse the wire with an appropriate fuse block and connectors within 18 inches 45 cm wire length of the positive battery post This fuse is essential to protect the vehicle Do not install the fuse until the power wire has been connected to the amplifier 4 Run signal cables RCA cables and remote turn on wire from the source unit or interface processor to the amplifier mounting location 5 Run speaker wire from the speaker systems to the amplifier mounting location 6 Find a good solid bare metal grounding point close to the amplifier and connect the negative power wire to it using appropriate hardware Use minimum 8 AWG power wire no longer than 36 inches 90 cm or 4 AWG wire up to 60 inches 150 cm long from the amplifier to the ground connection point In some vehicles it may be necessary to upgrade the battery s ground wire as well See page 7 for important notice 7 Securely mount the amplifier using appropriate hardware See page 8 for detailed mounting instructions 8 Connect the remote turn on wire and the positive and negative power wires to the amplifier s power connector plug Then insert the power connector plug into the amplifier s power connector receptacle pushing firmly 9 Connect the RCA input cables to the amplifier 10
39. to the HD600 4 s Front Inputs This mode is useful for feeding a subwoofer amplifier when the HD600 4 is being used to drive front and rear speaker systems In this mode the preamp output level will track with the signal level of the front input signals allowing the user to fade the rear channels in and out without affecting the subwoofer level 3 F R Front Rear This mode delivers a sum of the signals being fed to the Front Inputs and the Rear Inputs of the amplifier When the HD600 4 is being used to drive front and rear speaker systems this preamp output mode will deliver a summed front rear signal to the subwoofer amplifier while permitting fading of the front and rear speaker systems from the source unit REMOTE LEVEL CONTROL OPTIONAL With the addition of the optional Remote Level Control HD RLC you can control the volume of one or both channel pairs of the HD600 4 from the front of the vehicle This is useful for subwoofer level control or even as a master volume control for the system The HD RLC connects to the jack labeled Remote Level Control on the Connection Panel of the amplifier using a standard telephone cable supplied with the HD RLC If desired multiple HD amplifiers can be controlled from a single HD RLC controller using a simple phone line splitter and multiple phone cables Preouts Remote Level Control R When connected to the amplifier the HD RLC ope
40. use attenuated test tones 10 dB 20 dB etc E IMPORTANT Do not increase any Input Sens setting in the system beyond the maximum level established during this procedure Doing so will result in audible distortion and possible speaker damage It will be necessary to re adjust the Input Sens for the affected channels if any equalizer boost is activated after setting the Input Sens with this procedure This applies to any EQ boost circuit source unit tone controls or EQ circuits EQ cuts will not require re adjustment 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 drive the HD600 4 Disconnect the HD RLC Remote Level Control temporarily if one is being used 3 Switch the Input Voltage to Low and turn the Input Sens control on both sets of channels all the way down 4 Set the source unit volume to 3 4 of full volume If either set of channels is being driven by a source unit s dedicated subwoofer output also adjust the source unit s subwoofer level control to 3 4 of maximum output This will allow for reasonable gain overlap with moderate clipping at full volume 5 Using the chart below determine the target voltage for input sens
41. ut Sens setting for any amplifier in the system beyond the maximum level established during the procedure outlined in Appendix C pages 18 19 Doing so will result in audible distortion and possible speaker damage Be aware that both Input Sens adjustments will have to be made regardless of how many input cables are feeding the amplifier These controls will allow you to set the appropriate relative levels for the Front channels relative to the Rear channels and any other amplifier channels in the system CROSSOVER CONTROLS Crossovers are groups of electronic filters designed to control the frequency ranges that each speaker in a system will be tasked with reproducing Proper crossover setup is critical to sound quality and reliability The HD600 4 has two individual filters one for the Front channels and the other for the Rear channels Each can be configured as a high pass filter attenuates low frequencies or as a low pass filter attenuates high frequencies Additionally the user can select from a shallow 12dB octave filter slope or a more aggressive 24dB octave slope Each Channel Control section contains identical crossover filter controls 500 12dB 24dB Off HP LP Filter Filter Iz Slope Mode SONTROLs 1 1 Filter Mode Control this switch allows you to configure the filter for that Channel Pair into one of two filter types Of
42. ver Filters Filter Sets Two Front Channel and Rear Channel Filter Type State variable 12 dB octave Butterworth or 24 dB octave Linkwitz Riley Filter Modes Low Pass or High Pass Defeatable Cutoff Freq Range Continuously variable 50 500 Hz Input Sections No of Inputs Two Stereo Pairs Front and Rear Input Type Differential balanced with RCA jack inputs Input Range Switchable from 200mvV 2V RMS Low to 800mV 8V RMS High Preamp Output 2 Channel buffered pass through type switch selectable to pass signal from Front inputs only or from all four inputs summed Chassis Dimensions LxWxH 10 74 in x 7 85 in x 1 93 in 273 mm x 199 5 mm x 49 mm Dimensions do not include connectors Due to ongoing product development all specifications are subject to change without notice APPENDIX B Precise Frequency Selection Chart FILTER FREQ Detent Panel Actual Number Marking Freq Full counter clockwise 53 Olats BOT r 53 OA E EATA 53 UB E AEE 53 O ATAA I EET 53 OD noaa 54 0 EE ET 56 OVE EEEE E EEE 58 DS E SOO a 60 ING E E EEE 62 O E EEEE 64 i DEE AEE 66 EE E TEE 68 e A E 71 creating aken Oa 74 EEEE EE RETT EY 76 SENE 8O 80 TA EE E OTE 83 EEEE E SE 87 eE E E EE 91 QO E AEE 94 I A E T ENT EEE 99 WD EE EAEE 04 2 S a aa ese eee 09 P ee 12 o clock 15 P EEEN A E 21 P SE EENIA cine E ET 28 AD eE E a N AS SG 37 P APPEAR E 47 P EEEE EE unntar iets
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