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OWNER’S MANUAL

400W Marine 4 Channel 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 or

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.

NOT FOR USE IN 12 V SYSTEMS!

Содержание M400/4-24V

Страница 1: ...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 thoroughl...

Страница 2: ...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...

Страница 3: ...lso 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 or vessel Stupid Mistakes to Avo...

Страница 4: ...e power wire to the negative battery post Use the same size power wire as the wire connected to the 24V connection minimum 8 AWG 5 Run signal cables and remote turn on wire from the source unit to the...

Страница 5: ...end of each wire and insert the bare wire into the terminal block seating it firmly so that no bare wire is exposed While holding the wire in place tighten the set screw firmly taking care not to str...

Страница 6: ...ed by the set screw INPUT SECTION The M400 4 24V s input section allows you to send signals to the amplifier section through the use of two or four differential inputs Input connections are made via o...

Страница 7: ...will result in lower sensitivity quieter for a given input voltage To properly set the amplifier for maximum clean output please refer to Appendix A page 14 in this manual After using this procedure y...

Страница 8: ...hannels 1 2 another filter for channels 3 4 and a third filter for channels 5 6 Each of these filters can be configured independently into one of two filter types or defeated completely by way of the...

Страница 9: ...ion only the level of channels 3 and 4 will be affected by the HD RLC knob Channels 1 2 will not PREOUTS The M400 4 24V incorporates a pass through preamp output section so that additional amplifiers...

Страница 10: ...n bridged each channel will deliver optimum power into a 4 ohm load When a pair of channels are bridged they will deliver 200W x 1 into a 4 ohm load or 150W x 1 into an 8 ohm load Operating a pair of...

Страница 11: ...n This functionality can be used to diagnose a short circuit by only connecting one channel at a time The Status LED will turn amber when you connect the channel that is experiencing the problem and t...

Страница 12: ...e switch Result the relative level of the LF and HF channels will be determined by the M400 4 24V s Input Sens settings and will not be user adjustable from the helm B Fade Subwoofer Level vs HF Level...

Страница 13: ...and CH 2 Right inputs of the M400 4 24V select 2 Ch on the Input Mode switch The second stereo pair of source unit outputs is connected to the subwoofer amplifier inputs Result with this option the us...

Страница 14: ...system connected to the amplifier outputs 6 Verify that you have disconnected the speakers before proceeding Play a track with an appropriate sine wave within the frequency range to be amplified by th...

Страница 15: ...referred to rated power A weighted 20 Hz 20 kHz noise bandwidth 84 dB referred to 1W A weighted 20 Hz 20 kHz noise bandwidth Frequency Response 12 Hz 22 kHz 0 1dB Damping Factor 150 4 ohms per ch 50 H...

Страница 16: ...uired To test for this problem jump the 24VDC wire to the Remote terminal to see if the amplifier turns on I hear a repetitive ticking or popping sound coming out of the speaker s Check the speaker wi...

Страница 17: ...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...

Страница 18: ...18 JL Audio M400 4 24V Owner s Manual INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions...

Страница 19: ...19...

Страница 20: ...ereafter 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 whi...

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