Clarion APX400.2M manual High-pass/Low-pass Filter Controls

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.

•Bass Boost Control- The amplifier also features a “high-Q” (i.e. narrow frequency band) Bass Boost circuit. It acts much like an equlaizer, with adjustable gain (from 0 to +18dB) fixed at 45Hz. Use this feature to tune low- frequency audio response to compensate for a less than ideal subwoofer enclosure design. The added boost produces rich, full bass tones that are normally difficult to reproduce in the car audio environment. NOTE: If Bass Boost is undesired, set Bass Boost to 0dB.

High-pass/Low-pass Filter Controls

•Frequency (Hz) Selection Control - The crossover frequency is fully adjustable between 55Hz and 5500Hz (via the Crossover Frequency Multiplier) for a wide range of crossover points. Use this feature, along with your speaker manufacturer’s recommended crossover frequencies, to quickly design a more advanced system (see Applications on page 5.) NOTE: If the X-Over Mode Switch is set to OFF, varying the Freq (Hz) Control will produce no effect.

•Crossover Frequency Multiplier Switch - When engaged, this switch increases the crossover frequency by a factor of 10. Example: If the Freq (Hz) dial is set for 240 Hz, pushing in the Multiplier Switch changes the setting to 2400 Hz.

•X-Over Mode Switch - This switch is equipped with a 12dB per octave electronic filter for precise frequency attenuation with minimal phase distortion. The steep crossover slope keeps midrange tones out of the subwoofer and thereby eliminates an unnatural “nasal” tone quality in the audio system. A filter is activated by sliding the X-Over Mode Switch to either LP or HP.

•Input Mode Switch - This switch allows you to set the input mode. Stereo input allows full left and right stereo operation. Right (bridged) input allows single channel input for bridged operation. This is especially useful in high- powered systems when using one amplifier for each subwoofer/speaker. L + R (sum mono) allows a stereo input to be summed into a mono output.

•Speaker Level Inputs - These provide connections for a high-level stereo source. In addition, these connections are provided for installations where the source unit’s RCA outputs are unavailable.

WARNING: When using the speaker (high-level) inputs, the Black wire must be grounded at the Radio. Failure to do this will result in noise and improper operation.

2

Page 3 Page 5
Image 4
Page 3 Page 5
Contents Page Table of Contents About the Manual and WarrantyIntroduction Description Input Connections and Audio ControlsHigh-pass/Low-pass Filter Controls Connections for Power and Speakers Applications Channel Full-Range, Satellite, or Subwoofer Stereo System Mixed-Mode Satellite and Subwoofer System Mounting Precautions InstallationWiring Precautions Page Electrical connections for the APX400.2M Setting the Crossover Setting the GainSetting the Bass Boost Troubleshooting Final System ChecksProduct Specs APX400.2MPage APX400.2M-10 Rev.2 05/00

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.
Top Page Image Contents