Instruction/ maintenance manual of the product APX401.4 Clarion
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OPERAT I ON I NSTALLAT I ON MANUAL 4-CHANNEL POWER AMPLIFIER APX401.4.qxd 12/5/01 12:58 PM Page 1.
4 Channel Power System Amplifier 2 TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Input Connections and Audio Controls .
Owner’s Manual 3 Owner’s Manual DESCRIPTION The Clarion APX401.4 4-channel car audio amplifier is an excellent choice for creating a variety of multi-channel sound systems. The amplifier features flexi - bility of 2, 3 or 4 channel system by a flip of a switch.
4 Channel Power System Amplifier 4 The Input Connections are gold-plated RCA Jacks and are labeled as FRONT 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.
Owner’s Manual 5 • Rear Channel Input Select - This switch allows the flexibility of using either 2 or 4 inputs to operate the amplifier. • Speaker Level Inputs - These provide connections for a high-level stereo source. These connections are provided for installations when the source unit does not have RCA outputs.
4 Channel Power System Amplifier 6 APPLICATIONS The Clarion APX401.4 4-channel car audio amplifier can be used in a variety of system applications. Here are some examples to help plan your own installation. Figure 3 - In this application, the APX401.4 is used as a 4-channel amplifier to drive four full-range speakers in stereo.
Owner’s Manual 7 Figure 4 - In this 4-channel system, the APX401.4 drives a pair of stereo satellites for the front and a pair of subwoofers for the rear. Note the filter settings. 4-Channel Stereo System 2-Channel High-Pass, 2-Channel Low-Pass APX401.
4 Channel Power System Amplifier 8 2-Channel Stereo System with Low-Pass Bridged Mono Channel Figure 5 - The APX401.4 can also be used to drive a pair of stereo satellites for the front and a single mono subwoofer for the rear. Note the filter settings.
Owner’s Manual 9 2-Channel High Power System (Satellite or Subwoofer) Figure 6 - The APX401.4 can be set up as a 2-channel high-power amplifier to drive a pair of satellites (or subwoofers).
4 Channel Power System Amplifier 10 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.
Owner’s Manual 11 INSTALLATION This section lists Mounting and Wiring Precautions prior to installing the Clarion APX401.4. These safeguards provide enough detail to complete an installation successfully. If you do not have the necessary skills, do not attempt to install the amplifier yourself.
4 Channel Power System Amplifier 12 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. Do not connect this wire to the car’s fuse panel.
Owner’s Manual 13 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.
4 Channel Power System Amplifier 14 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.
Owner’s Manual 15 Problem Amplifier fuse keeps blowing. Solution Incorrect wiring or short circuit. Review Installation and check all wiring connections. Problem Whining or ticking noise in the audio with engine on. Solution Amplifier is picking up alternator noise or radiated noise.
Clarion Corporation of America 661 W. Redondo Beach Blvd. Gardena, CA 90247-4201 U.S.A. APX401.4 Rev. 1(11/01) WARRANTY INFORMATION This product is warranted against all defects in material workmanship for a period of one year from the date of original purchase.
An important point after buying a device Clarion APX401.4 (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 APX401.4 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 APX401.4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Clarion APX401.4 you will learn all the available features of the product, as well as information on its operation. The information that you get Clarion APX401.4 will certainly help you make a decision on the purchase.
If you already are a holder of Clarion APX401.4, 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 APX401.4.
However, one of the most important roles played by the user manual is to help in solving problems with Clarion APX401.4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Clarion APX401.4 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
