Clarion APX290M/APX490M Power System Amplifier, English, Introduction, Table Of Contents

APX280M APX490M manual.qxd 2/6/2008 11:38 AM Page 2

English

APX290M/APX490M Power System Amplifier

INTRODUCTION

The Clarion APX290M is a full-featured, two-channel amplifier incorporating the following features:

•Specially coated circuit boards that resist mold, mildew and moisture damage.

•Pulse-Width Modulated (PWM) MOSFET power supply for maximum performance with minimal distortion.

•Remote turn-on with "soft start" muting to prevent turn-on "thump".

•Variable high-pass/low-pass electronic crossover with a 12dB per octave slope (adjustable range: 55Hz to 5.5kHz).

•Variable bass boost circuit to reinforce low frequency signals that may be lost due to subwoofer enclosure design.

•Adjustable input level controls with ground loop isolation to minimize noise and distortion.

•2-ohm stereo stable, 4-ohm mono stable.

•Gold-plated power, speaker, and RCA connectors.

•Speaker level input.

•Low profile construction with aluminum heat sink for efficient heat dissipation.

The Clarion APX490M is a full featured, four-channel amplifier adding the following feature:

•Advanced circuitry design featuring bridgeable and mixed mode operation for use in various system configurations including 4, 3, or 2 channel systems.

ABOUT THE MANUAL AND WARRANTY

This manual describes the basic requirements to install the Clarion APX290M and APX490M amplifiers. The installation of this amplifier can be quite complex to install, if you do not posses the necessary knowledge and tools to perform this installation, please contact your local Clarion Marine Audio dealer.

Keep all instructions and sales receipt for future reference and warranty information. Warranty information can be found on page 18 of this manual.

TABLE OF CONTENTS
Description	1
Input Connections and Audio Controls	2
Connections for Power and Speakers	4
Installation	6
Mounting Precautions	6
Wiring Precautions	6
APX490M Wiring and Applications	7
APX290M Wiring and Applications	12
Setting the Gain	15
Setting the Crossover	15
Setting the Subwoofer Bass Boost	15
Final System Check	16
Troubleshooting	16
Product Specs	17
Clarion Limited Warranty	18

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