INTRODUCTION

The Clarion APX400.2M is a full-featured two-channel amplifier incorporating the following features:

Full frequency response with low distrotion and exceptional signal to noise performance

Advanced circuit design that features bridgeable and mixed mode operation for use in various systems, including those with satellite speakers and/or subwoofers

Variable high-pass/low-pass electronic crossover with a 12dB per octave slope and full adjustable range (from 55Hz to 5.5kHz) to aid in audio system design

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

Adjustable input level controls with ground loop isolation accepting a wide range of input signals

Remote turn-on with “soft start” muting to prevent turn-on “thump”

Pulse-Width Modulated (PWM) MOSFET power supply with low AM RFI and protection circuits for overheating and speaker shorts

2-ohm load capability to drive a variety of speaker systems

Gold-plated input/output connectors and an extenal automotive type fuse

Aluminum heat sink for efficient heat dissipation

Low profile, compact size for space limited installations

ABOUT THE MANUAL AND WARRANTY

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. Also, save your original sales receipt as proof of purchase.

TABLE OF CONTENTS

 

 

Description • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

1

Input Connections and Audio Controls

• • • • • • • • • • • • • • • • • • • •

1

Connections for Power and Speakers

• • • • • • • • • • • • • • • • • • • • •

3

Applications • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

4

Installation • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

7

Mounting Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

7

Wiring Precautions

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

7

Setting the Gain

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

10

Setting the Crossover

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

10

Setting the Bass Boost • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

10

Final System Checks

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

11

Troubleshooting

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

11

Product Specs • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

12

Notes • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •

13

 

 

 

 

 

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Clarion APX400.2M manual Introduction, About the Manual and Warranty, Table of Contents

APX400.2M specifications

The Clarion APX400.2M is a powerful and versatile 2-channel amplifier designed to deliver high-quality audio performance for car enthusiasts and audiophiles alike. Known for its durability and efficiency, this amplifier is built to enhance the listening experience in any vehicle.

One of the key features of the APX400.2M is its impressive power output. With a maximum power rating of 400 watts, this amplifier can drive a variety of speakers, providing clear and powerful sound reproduction at any volume level. Its RMS output of 100 watts per channel at 4 ohms ensures that users receive a consistent and reliable audio experience.

Another significant characteristic of the APX400.2M is its Class D amplifier technology. This design not only contributes to the lightweight and compact form factor of the unit but also ensures greater energy efficiency compared to traditional Class A/B amplifiers. As a result, minimal heat is generated, allowing for extended listening sessions without the worry of overheating.

The APX400.2M features an adjustable high-pass filter, which allows users to tailor the sound to their specific preferences and needs. This filter helps to eliminate unwanted low frequencies, ensuring that the audio output remains clean and distortion-free, particularly when paired with subwoofers. Additionally, the amplifier includes a bass boost function, which can be activated to enrich the low-end response, making it ideal for genres such as hip-hop and electronic music.

Installation convenience is another noteworthy aspect of the Clarion APX400.2M. The amplifier is designed with a compact footprint, enabling it to fit in various locations within the vehicle without consuming excessive space. Consequently, it is an excellent choice for those with smaller vehicles or limited installation options. Moreover, the amplifier features a robust construction, ensuring it withstands the rigors of the automotive environment, including vibrations and temperature fluctuations.

In summary, the Clarion APX400.2M stands out with its powerful performance, energy-efficient Class D technology, adjustable high-pass filter, and durable construction. This amplifier is an excellent choice for anyone looking to elevate their car audio system, delivering impressive sound quality and reliability. Whether for everyday driving or a weekend road trip, the APX400.2M is sure to satisfy even the most discerning audio enthusiasts.