Clarion APX480M manual Setting the Gain, Setting the Crossover, Setting the Bass Boost

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APX480M manual.qxd 3/12/2004 1:07 PM Page 12

APX480M Power System Amplifier

SETTING THE GAIN

After completing the installation, follow these steps to set the Gain Control and then perform the Final System Checks.

1.Turn the Gain Control all the way counter-clockwise.

2.Turn the vehicle’s Ignition Switch to the ON position. Then turn the ON/OFF Switch on the source units to the ON position. Set all Tone or Equalization Controls to “flat” positions and turn Loudness off.

3.Play a CD or Tape and set the Volume Control at 75% of full level. NOTE: If the system uses an equalizer, set its frequency controls to “flat” positions.

4.Slowly increase the Gain Control. Stop when you hear a slight distortion of audio.

SETTING THE CROSSOVER

The Clarion APX480M features fully adjustable front and rear crossovers. To set the crossovers, follow these steps.

1.Using the X-Over Mode Switch, select the desired mode: LP for Low Pass, HP for High Pass or OFF for Full Range.

2.Using the Freq (Hz) Selection Control, select the desired frequency. If the desired frequency exceeds the range of the Freq (Hz) Selection Control, press the Crossover Frequency Multiplier Switch to increase the value by a multiplier of 10.

• For example, 55Hz x 10 = 550Hz or 550Hz x 10 = 5.5kHz.

3.Repeat steps 1 and 2 for both the front and rear crossovers.

SETTING THE BASS BOOST

1.Initially set the Bass Boost control to its full left position (i.e. 0dB).

2.Listen to a variety of music styles (e.g. Rock, Rap, etc.) and slowly increase the Bass Boost control until a noticeable increase in low bass response is perceived.

3.Slowly adjust the Bass Boost control (up or down) to realize the best bass response.

CAUTION: If you hear a “pop” (due to speaker over-excursion), lower the Bass Boost to prevent speaker damage. If the system sounds muddy and distorted (due to amplifier clipping), lower Bass Boost to avoid shutdown from overheating.

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Contents APX480M manual.qxd 3/12/2004 107 PM About the Manual and Warranty Table of ContentsIntroduction Description Input Connections and Audio CONTROLsHigh-pass/Low-pass Filter Controls Operation/Installation Manual Connections for Power and SpeakersInstallation Mounting PrecautionsWiring Precautions Wiring and Applications Channel Full-Range Stereo SystemChannel Stereo System Channel High-Pass, 2-Channel Low-Pass Channel Stereo System with Low-Pass Bridged Mono Channel Channel High Power System Satellite or Subwoofer Mixed-Mode System On Rear Full-Range Speakers On Front Setting the Gain Setting the CrossoverSetting the Bass Boost Troubleshooting Final System CheckProduct Specs THDClarion Limited Warranty APX480M manual.qxd 3/12/2004 107 PM
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APX480M specifications

The Clarion APX480M is a cutting-edge marine amplifier that combines power with durability, making it an excellent choice for boat enthusiasts who want to enhance their audio experience on the water. This amplifier is designed to deliver high-quality sound and can power even the most demanding marine audio systems.

One of the standout features of the APX480M is its impressive power output. With a maximum output of 480 watts, it can drive multiple speakers and subwoofers effectively, providing a rich sound experience. The amplifier operates at a 4-channel configuration, allowing for diverse installation options. It is capable of delivering 60 watts RMS per channel into 4-ohm loads, ensuring that you can achieve loud and clear audio without distortion, even at higher volumes.

The APX480M is built for the tough marine environment. It has been designed and constructed to resist moisture and corrosion. The amplifier features conformal coated circuit boards, which protect the electronics from harsh marine conditions such as saltwater and humidity, contributing to its longevity and reliability. Additionally, the rugged aluminum heatsink provides efficient thermal management, preventing overheating during extended use.

Another notable characteristic of the APX480M is its built-in high-pass and low-pass crossovers. These allow users to fine-tune their audio system, ensuring that each speaker receives the appropriate frequency range. This feature enhances overall sound quality and helps in achieving a balanced audio experience, essential for listening to music while cruising on the water.

The amplifier also incorporates advanced technologies for improved performance. Some of these technologies include a MOSFET power supply, which maximizes efficiency and minimizes signal loss, and a variable bass boost, allowing users to emphasize low frequencies for a more powerful bass response. It also features low-level RCA inputs, making it easier to connect to head units for seamless integration into existing audio systems.

Installation is made simple with the APX480M, thanks to its compact design and user-friendly layout. The amplifier comes with a comprehensive set of mounting options and a straightforward wiring scheme, making it accessible for both novice and experienced installers.

In summary, the Clarion APX480M stands out in the marine audio market with its powerful output, durable construction, and versatile features. Whether you are sailing on a serene lake or navigating rough seas, this amplifier ensures an unparalleled audio experience that can withstand the elements while delivering crisp, high-quality sound.
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