Dual DMA804D Installation & Owner's Manual

Dual DMA804D Installation & Owner's Manual

Marine power amplifiers

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DMA802D-DMA804D
INSTALLATION / OWNER'S MANUAL
Marine Power Amplifiers

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Summary of Contents for Dual DMA804D

  • Page 1 DMA802D-DMA804D INSTALLATION / OWNER'S MANUAL Marine Power Amplifiers...
  • Page 2 INSTALLATION Preparation Please read entire manual before installation. Due to the technical nature of amplifiers, it is highly recommended that your amplifier is installed by a professional installer or an authorized dealer. Before You Start • Disconnect negative battery terminal. (consult a qualified technician for instructions) •...
  • Page 3: Connection Descriptions

    INSTALLATION Connection Descriptions NOTE: Be sure to follow specific instructions included with your amplifier installation kit (not included with this amplifier). The information below should be used as a general guideline only. Power Wire (+12V) • Disconnect negative battery terminal before proceeding. Consult a qualified technician for instructions if you are unsure.
  • Page 4 INSTALLATION Audio Inputs and Controls DMA802D H I G H I N P U T DMA804D H I G H I N P U T High-Level Inputs (Speaker Wire) High-Pass Filter Line In / Line Out (RCA) Low-Pass Filter Gain...
  • Page 5: Power And Speaker Connections

    INSTALLATION Power and Speaker Connections DMA802D DMA804D +12VDC Battery Connection Ground Connection Fuse(s) Remote Turn On Speaker Connections Power/Protect LED...
  • Page 6: Typical Wire Routing

    INSTALLATION Typical Wire Routing DMA802D Main Power Connections The illustrations on pages 6 and 7 demonstrate three different wiring options for each unit. Once desired configuration has been selected, connect the +12V, GND and REM wires accordingly. A suitable fuse MUST be installed on the +12V lead within 18"...
  • Page 7 DMA802D - 25A DMA804D - 25Ax2 Power/Ground Wire Size For optimum performance, use only the wire size listed below or larger. Make sure to use the same size power and ground wire. DMA802D - 8 awg DMA804D - 8 awg...
  • Page 8: Amplifier Connections

    INSTALLATION Amplifier Connections Speaker Connections Connect speaker wires 2 Speakers (stereo) Speakers (bridged) observing polarity. The minimum impedance load for the amplifiers is 2 ohms stereo and 4 ohms bridged. Use of loads lower than these is not recommended and may cause amplifier damage.
  • Page 9 INSTALLATION Configuration/Setup Input level Control The input level control (gain) is used to obtain the best possible match between the head unit audio output and the amplifier input. Begin by turning the input level control fully counterclockwise. Next, turn up the head unit volume control around 3/4 of the way up.
  • Page 10: Specifications

    > 75dB Frequency response: 20Hz -20kHz Amplifier dimensions: 7.2” x 5.0” x 1.8” (182.5 x 127 x 46 mm) DMA804D Power Output •80 Watts x 4 channels @ 4 Ohms •120 Watts x 4 channels @ 2 Ohms •240 Watts x 2 channels (bridged)
  • Page 11: Troubleshooting

    INSTALLATION Troubleshooting Problem Cause Action +12V wire not connected or incorrect Check connections for proper voltage voltage. REM wire not connected or Unit will not turn on (11~16VDC) incorrect voltage (no power LED indicator) GND wire not connected Check connection to ground Fuse(s) blown Replace fuse(s) Speaker wires not connected...
  • Page 12: One-Year Limited Warranty

    A slight adjustment of any custom controls may save you a service Dual Electronics Corp. warrants this product to the original purchaser to be free from call. defects in material and workmanship for a period of one year from the date of the 2.
  • Page 13 INSTALLATION Notes...
  • Page 14 Details and specifications mentioned in this document may be updated and subject to change without notice. To access the latest document, please check the product website. Dual Electronics Corp. Toll Free: 1-866-382-5476 Monday-Friday, 9AM-5PM, EST www.dualav.com ©2019 Dual Electronics Corp. NSC1218-V01...

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