Clarion APX400.2M Operating & Installation Manual
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Clarion APX400.2M Operating & Installation Manual

Clarion APX400.2M Operating & Installation Manual

Two-channel amplifier
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Summary of Contents for Clarion APX400.2M

  • Page 2: Table Of Contents

    • Low profile, compact size for space limited installations ABOUT THE MANUAL AND W ARRANTY To start enjoying your new Clarion two-channel amplifier, please read the instructions listed in this manual. Keep all instructions for future reference. Please fill out and send in the enclosed warranty card to protect your purchase and aid in warranty service.

  • Page 3: Description

    Protection circuits safeguard the amplifier when overheating and speaker shorts or improper load conditions occur. All connections and controls of the APX400.2M are on the end panels and are easy to understand. We use gold-plated RCA and barrier connectors to ensure the best electrical connection for your system.
  • Page 4 • Gain Control - This allows you to set the nominal operating level of the amplifier. The amplifier’s range, 250mV to 2.5V for RCA inputs or 500mV to 5V for speaker level inputs, can accommodate input levels from virtually any brand of source unit.

  • Page 5: Connections For Power And Speakers

    CONNECTIONS FOR POWER AND SPEAKERS The rear panel of the APX400.2M contains power and speaker connections as shown below. Figure 2- 1. Left Speaker Output 2. Right Speaker Output 3. Remote Turn-on Input 4. Ground Input 5. Battery + 12V Input...

  • Page 6: Applications

    APPLICATIONS The Clarion APX400.2M 2-channel marine audio amplifier can be used in a variety of system applications. Here are some examples to help plan your own installation. Bridged- Mono Subwoofer System Set X-Over Mode to LP and adjust FREQ to speaker specifications.
  • Page 7 2-Channel Full-Range, Satellite, or Subwoofer Stereo System (Set INPUT SELECT Switch to STEREO) Set X-Over Mode as shown. Set X-Over Mode as shown; adjust FREQ to speaker specifications. Set X-Over Mode as shown; adjust FREQ to speaker specifications. Figure 4 - In this application, the amplifier is used in stereo and drives two full-range (or satellite or subwoofer) speakers.
  • Page 8 Mixed-Mode Satellite and Subwoofer System (Set INPUT SELECT Switch to STEREO) FREQ (hz) L (mH) NOTE: Chart values based on 4 ohm speakers. Figure 5 - The amplifier can be configured for a mixed-mode operation. The table provides component values to create a 6dB per octave crossover at specified frequencies.

  • Page 9: Installation

    INSTALLATION This section lists Mounting and Wiring Precautions for installing a Clarion APX400.2M marine amplifier. Combined with the experience of a professional installer, these safeguards provide enough detail to successfully complete an installation. If you do not have the necessary skills, do not install the amplifier yourself.
  • Page 10 If you are planning a multi-amplifier system, you may need to add a second battery and possibly upgrade the alternator with a higher-output rated model. Consult your authorized Clarion dealer for recommendations. 9. To avoid noise problems, run the amplifier’s positive (+) power lead along one side of the vessel to the battery.
  • Page 11 Figure 6. - Electrical connections for the APX400.2M.

  • Page 12: Setting The Gain

    4. Slowly increase the Gain Control. Stop when you hear a slight distortion of audio. SETTING THE CROSSOVER The Clarion APX400.2M features a fully adjustable crossover. To set the crossover, follow these steps. 1. Using the X-Over Mode Switch, select the desired mode - LP for Low Pass, HP for High Pass and OFF for Full Range.

  • Page 13: Final System Checks

    Speakers not connected or are blown. Check speaker connections at amplifier, measure coil impedance. Problem Audio cycles on and off. Solution Thermal protection circuits are shutting amplifier off. Check location for adequate ventilation; consult an authorized Clarion Audio Dealer.

  • Page 14: Product Specs

    Input Sensitivity Speaker Level Max. Power Output Cont. Power Output 2-Ohm Stereo Output Bridged Power Dimensions Current Consumption at output @ max power APX400.2M 20Hz ~ 20kHz >98db .05% all channels driven 250mV ~ 2.5 V 500mV ~ 5V 380w (190 x 2) 200w (100w x 2) @ .08% THD...

  • Page 15: Notes

    NOTES...
  • Page 16 661 W. Redondo Beach Blvd. Gardena, CA 90247 1-800-GO-CLARION www.clarion-usa.com APX400.2M-10 Rev.2 (05/00)

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