JL Audio MHD600/4 Owner'S Manual Download Page 1

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owner’s manual

4-Channel Class-D Full-Range Marine Amplifier

Thank you for purchasing a JL Audio amplifier for

your marine sound system.

Your amplifier has been designed and manufactured to exacting

standards in order to ensure years of musical enjoyment in your vessel.

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.

Summary of Contents for MHD600/4

Page 1: ...ized 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...

Page 2: ...mage your hearing and that of others in your vessel Studies have shown that continuous exposure to high sound pressure levels can lead to permanent irreparable hearing loss This and all other high pow...

Page 3: ...rified 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...

Page 4: ...This will prevent accidental damage to the system the vessel and your body during installation Rear Preouts Remote Level Control Front Inputs L R L R 12 VDC Ground Remote 12V Battery Connection You wi...

Page 5: ...put excessive 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 crossove...

Page 6: ...ff frequency with a higher level of precision consult the charts in Appendix B page 18 of this manual Input Voltage Switch A wide range of signal input voltages can be accommodated by each of the MHD6...

Page 7: ...s or channels The MHD600 4 can be configured to drive a bi amplified system by itself or with a separate subwoofer amplifier Bi Amplified System with one MHD600 4 In this configuration the Rear channe...

Page 8: ...ol 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 For example if you are using...

Page 9: ...ystem 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 th...

Page 10: ...0 V 6 24 5 V 42 4 V 24 5 V 42 4 V 4 24 5 V 34 6 V 24 5 V 34 6 V 3 21 2 V 30 0 V 21 2 V 30 0 V 2 17 3 V not recommended 17 3 V not recommended 1 5 15 0 V not recommended 15 0 V not recommended Appendix...

Page 11: ...peaker 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 How do I properly set the input sen...

Page 12: ...22 JL Audio MHD600 4 Owner s Manual 23 INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions...

Page 13: ...ied 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 yo...