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Directed Audio A404 Owner's Manual

Directed audio car amplifier user manual
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OWNER'S
MANUAL
A502
models
A404

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Summary of Contents for Directed Audio A404

  • Page 1 OWNER’S MANUAL A502 models A404...

  • Page 2: Table Of Contents

    Speaker wiring diagrams A502 .......10 Speaker wiring diagrams A404 .......11 Crossover settings and gain adjustment .

  • Page 3: Limited Two-Year Consumer Warranty

    LIMITED TWO-YEAR CONSUMER WARRANTY Directed Electronics, Inc. promises to the original purchaser, to replace this product should it prove to be defective in workman- ship or material under normal use, for a period of two years from the date of purchase by the dealer as indicated by the date code marking of the product PROVIDED the product was installed by an...

  • Page 4: Features

    FEATURES High-speed MOSFET switching power supply and complimentary bipolar outputs. Stereo, mono, or simultaneous stereo/mono operation. Thermal, DC offset, reverse polarity. Selectable 12dB/octave two-way crossover. Switchable 8 dB bass EQ function. WARNING High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result.

  • Page 5: Installation Guidelines

    INSTALLATION GUIDELINES 1. Please read this owner’s manual carefully before installing this ampli- fier. 2. Disconnect the battery ground terminal prior to making any elec- trical connections. 3. Check for any hazards or obstruc- tions such as gas tanks, fuel or brake lines, and wiring harnesses before mounting the amplifier.
  • Page 6 speaker load, the more heat is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable. 9. Battery and ground connections to the vehicle should be made with crimped ring terminals of the appro- priate size (surface area is what counts);...

  • Page 7: Front Panel Connections/Controls A502-A404

    FRONT PANEL CONNECTIONS/CONTROLS A502-A404 1. R R C C A A I I n n p p u u t t J J a a c c k k s s - - Accepts line level outputs from head units or signal processors at voltages between 150mV and 7.5 volts.

  • Page 8: Rear Panel Connections

    The A502 uses 1-30A fuse, and the A404 uses 1-30A fuse. 2. ( ( + + ) ) 1 1 2 2 V V o o l l t t P P o o w w e e r r - Connect this...
  • Page 9 FIGURE 3—AMPLIFIER CONNECTIONS A502 REAR FIGURE 4—AMPLIFIER CONNECTIONS A404 REAR © 2004 Directed Electronics, Inc 5. S S p p e e a a k k e e r r T T e e r r m m i i n n a a l l s s - Connect the speakers to these terminals.

  • Page 10: Speaker Wiring Diagrams A502

    SPEAKER WIRING DIAGRAMS A502 Stereo operation (top view) L CH R CH Mono operation (top view) Simultaneous stereo/mono operation (top view) INDUCTOR 1 1 0 0 L CH R CH L CH R CH © 2004 Directed Electronics, Inc...

  • Page 11: Speaker Wiring Diagrams A404

    SPEAKER WIRING DIAGRAMS A404 Stereo Operation - 2 Channel N N O O T T E E : : For bridged two channel operation as shown in this diagram, connect right channel RCA cables to the front inputs of the amplifier, and left channel RCA cables to the rear inputs of the amplifier.
  • Page 12 Stereo Operation - 4 Channel FRONT (LEFT) FRONT (RIGHT) REAR (LEFT) REAR (RIGHT) (top view) Simultaneous Stereo INDUCTOR FRONT INDUCTOR REAR 1 1 2 2 (top view) L CH R CH L CH R CH L CH R CH L CH R CH ©...
  • Page 13 2 Channel Stereo with Mono Sub L CH R CH REAR L CH (LEFT) REAR R CH (RIGHT) © 2004 Directed Electronics, Inc (top view) 1 1 3 3...

  • Page 14: Crossover Settings And Gain Adjustment

    CROSSOVER SETTINGS AND GAIN ADJUSTMENT Your Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance. These are some guidelines to follow when fine-tuning the amplifier. For full-range and simultaneous stereo/mono bass applications, the crossover selection switch should be set to FLAT. If the amplifier is driving your subwoofers, set the switch to LPF, and for mid-bass/midrange output, set to HPF.

  • Page 15: Led Tube Installation (Optional)

    LED TUBE INSTALLATION (OPTIONAL) This Directed Audio amplifier has been designed with a custom heat sink that can accommodate two (optional—not supplied) VARAD LED tubes. 1. Before installing the LED tubes, remove and discard the mounting feet from the VARAD LED tubes.

  • Page 16: Cea Specifications

    CEA SPECIFICATIONS A A 5 5 0 0 2 2 Power Output: 90 Watts RMS x 2 at 4 ohms and < 1% THD+N Signal to Noise Ratio: -70 dBA (reference 1 Watt into 4 ohms) Additional Power: 125 Watts RMS x 2 at 2 ohm and < 1% THD+N A A 4 4 0 0 4 4 Power Output: 45 Watts RMS x 4 at 4 ohms and <...

  • Page 17: Specifications

    SPECIFICATIONS RMS continuous 75W x 2 Power 4 Ohm RMS continuous 125W x 2 Power 2 Ohm RMS continuous Power 250W x 1 Bridged 4 Ohm Dynamic Power Rating (IHF-202 Standard) 4 Ohms Signal-to-Noise Ratio Greater than 90 dB Frequency Response 20-20,000 Hz ±...
  • Page 18 The company behind this system is Directed Electronics, Inc. Directed Electronics, Inc. its inception, Directed has had one purpose, to provide customers with the finest Vista, California 92081 vehicle security, car stereo products, rear seat entertainment, and accessories avail- www.directed.com able.

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A502

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