Instruction/ maintenance manual of the product APX400 Clarion
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INTRODUCTION The Clarion APX400.4M is a full-featured four-channel amplifier. It comes with the following features: • Full frequency response with low distortion and exceptional signal to noise perf.
DESCRIPTION The Clarion APX400.4M 4-channel marine amplifier is an excellent choice for creating a variety of multi-channel sound systems. It features built-in system design flexibility that allows you to create a 2, 3 or 4 channel amplifier with a flip of a switch.
RIGHT, FRONT LEFT , REAR RIGHT and REAR LEFT. The Gain Controls provide a wide adjustment range to accommodate output levels from any brand of source unit. • Gain Controls - Seperate Front and Rear Gain Controls allow you to set the nominal operating level of the amplifier .
• Rear Channel Input Select - This switch allows you to use a 2 channel input to drive all 4 channels of this amplifier . • 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 RCAoutputs are unavailable.
APPLICA TIONS The Clarion APX400.4M 4-channel marine amplifier can be used in a variety of system applications. W e’ve enclosed some example systems to help plan your own installation. 4-Channel Full-Range Stereo System Figure 3 - In this application, the APX400.
4-Channel Stereo System 2-Channels High-Pass, 2-Channels Low-Pass Figure 4 - In this 4-channel system, the APX400.4M drives a pair of stereo satellites for the front and a pair of stereo subwoofers for the rear.
2-Channel Stereo System with Low-Pass Bridged Mono Channel Figure 5 - The APX400.4M can also be used to drive a pair of stereo satellites for the front and a single mono subwoofer for the rear.
2-Channel High Power Systems (Satellite or Subwoofer) Figure 6 - The APX400.4M can be set up as a 2-channel high-power amplifier to drive a pair of satellites (or subwoofers).
Mixed-Mode System On Rear; Full-Range Speakers On Front NOTE: Chart values based on 4 ohm speakers. Figure 7 - The amplifier can be configured for a mixed-mode operation on either channels 1/2 or 3/4 amplifier sections. The table provides component values to create a 6dB per octave crossover at specified frequencies.
INSTALLA TION This section lists Mounting and W iring Precautions for installing the Clarion APX400.4M. 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.
6. Refer to the Figure 8 when making electrical connections. Connect the amplifier’ s positive (+) lead via a fuse directly to the positive (+) terminal on the battery.
SETTING THE GAIN After completing the installation, follow these steps to set the Gain Control and then perform the Final System Checks. 1. T urn the Gain Control all the way counter-clockwise. 2. T urn the vehicle’s Ignition Switch to the ON position.
Problem No Audio. Solution Low or no remote turn-on voltage. Check remote connections at amplifier and source unit. Blown amplifier fuse. Replace with new fast-blow fuse (same rating). Power wires not connected. Check battery and ground wiring at amplifier; also check battery connections.
13 Problem Audio lacks punch. Solution Speakers wired incorrectly, which causes cancellation of bass frequencies. Check polarity of wires from amplifier to each speaker as defined by the system design. Problem Amplifier fuse keeps blowing. Solution Incorrect wiring or short circuit.
661 W. Redondo Beach Blvd. Gardena, CA 90247 1-800-GO-CLARION www.clarion-usa.com APX400.4M-10 Re v .2 (05/00).
An important point after buying a device Clarion APX400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Clarion APX400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Clarion APX400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Clarion APX400 you will learn all the available features of the product, as well as information on its operation. The information that you get Clarion APX400 will certainly help you make a decision on the purchase.
If you already are a holder of Clarion APX400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Clarion APX400.
However, one of the most important roles played by the user manual is to help in solving problems with Clarion APX400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Clarion APX400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
