Harman JBL MA704 Manual
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Harman JBL MA704 Manual

Harman JBL MA704 Manual

Marine amplifiers
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JBL Marine
МА704/МА4505
AMPLIFIERS
®
ьyHARMAN
MANUAL

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Summary of Contents for Harman JBL MA704

  • Page 1 JBL Marine МА704/МА4505 AMPLIFIERS ® ьyHARMAN MANUAL...
  • Page 2 HARMAN THANK VOU FOR VOUR PURGHASE ... Your JBL product has been designed to provide you with the performance and ease of operation you would expect from JBL. • Please take time to read your owner's manual in its entirety before operating or installing your amplifier.

  • Page 3: Table Of Contents

    JBL MARINE TABLE OF CONTENTS СНАРТЕR 1: PICTORIAL INDEX OF INPUT CONNECТIONS CHAPTER 2: INSTALLAТION AND WIRING What's in the Ьох Precautions 1. Power indicator 2. Protect indicator 3. Speaker output connectors 4. Fuses 5. Power input connectors 6. Front and rear inputs and outputs (RCA) 7.

  • Page 4: Снартеr 1: Pictorial Index Of Input Connecтions

    UПL HARMAN СНАРТЕR 1: PICTORIAL INDEX OF INPUT CONNECТIONS MARINE Amplifier top panel MARINE Amplifier front panel MARINE Amplifier back panel PREO\JТ REAR FRONT...

  • Page 5: Chapter 2: Installaтion And Wiring

    JBL MARINE СНАРТЕR 2: INSTALLAТION AND WIRING What's in the Ьох: JBL Marine МА704 JBL Marine МА4505 1 amplifier 1 amplifier Stainless steel mounting hardware Stainless steel mounting hardware Rubber inserts Rubber inserts 4 High-level input adapters 4 High-level input adapters 2 spare fuses 3 spare fuses 2 2-color brand stickers...

  • Page 6: Power Indicator

    UПL HARMAN 1. Power indicator: The light will illuminate in Ыuе when the amp is receiving power and playing. 2. Protect indicator: The indicator will illuminate in red if the amp enters Protect mode in the event of conditions such as over/under voltage, short circuit, amplifier output circuit failure, or excessive heat.
  • Page 7 JBL MARINE 3-channel operation: Connect the stereo speakers to the Front terminals, as described above. Connect the single speaker's + lead to the Rear L + terminal, and the - lead to the Rear R- terminal. Left Front speaker Right Front speaker 1 0 001 4-ohm subwoofer, or high power speaker...
  • Page 8 UПL HARMAN • The МА4505 features Front L +, L-, R+, and R- terminals; Rear L +, L-, R+, and R- terminals; and Sub + and - terminals. 5-channel operation: Connect the front left speaker to the Front L + and L- terminals, and the front right speaker to the Front R+ and R­...

  • Page 9: Fuses

    JBL MARINE 4. Fuses: • Replace only with fuses of the same amperage: МА704: ЗОА МА4505:ЗОА 5. Power lnput Gonnectors: • Power: Run power wire from the + 12V input to the positive terminal of the vehicle's battery. lnstall ап appropriate fuse holder and fuse (БОА minimum оп...

  • Page 10: Lnput Level

    UПL HARMAN Always connect the ( speaker wire to the adapter's ( terminal and the (-) speaker wire to the adapter's (-) terminal. When all wires are connected, plug the adapters into the amplifier's FRONT (and REAR, if using the 4-channel amplifier) preamp inputs.

  • Page 11: Gain

    JBL MARINE СНАРТЕR 3: OPERAТIONS Setting the input levels: То match your amplifier's input sensitivity (gain) to your source unit's output level, we recommend the following procedure: А. Turn both input level controls counterclockwise to MIN (minimum). В. Play а dynamic music track through your source unit. Turn the source unit's volume control to the 3/4 position. С.

  • Page 12: Снартеr 4:Troubleshooтing

    OdB +9dB ° ° UПL HARMAN Selecting the subwoofer phase ° ° You сап choose а subwoofer phase output of 0 or 180 . То check your sub's phase, play music with lots of bass and listen as another person slowly flips the 0/180 degree phase switch back and forth.

  • Page 13: Снартеr 5: Specificaтions

    JBL MARINE PROBLEM: Distorted audio and PROTECT INDICATOR flashes. CAUSE and SOLUTION: Short circuit in speaker or wire. Remove speaker leads опе at а time to locate shorted speaker or wire, and repair. PROBLEM: Music lacks dynamics or punch. CAUSE and SOLUTION: Speakers are not connected properly. Check speaker connections for proper polarity. PROBLEM: Amplifier fuse keeps Ыowing.

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Jbl ma4505

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