User manual CLARION APA-4320

[. . . ] The amplifier also uses an unregulated MOSFET power supply for superior control of output wattage. A toroid-coil transformer yields maximum power transfer with minimal heat loss. Extensive circuit design keeps AM RFI at low levels, so you won't hear unwanted noise when the level is cranked up. Protection circuits safeguard the amplifier when overheating, speaker shorts, or improper load conditions occur. [. . . ] Each filter is activated by sliding the X-Over Mode Switch to either LP or HP. · Output Mode Switches - These switches allow you to set the output mode for front and rear channels. Bridged Mode uses a single input (Right In) to produce a bridged output that is useful in high powered systems. L + R (sum mono) allows a stereo input to be summed into a mono output. 4 Owner's Manual · 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. WARNING: When using the speaker (high-level) inputs, the Black wire must be grounded at the radio. CONNECTIONS FOR POWER AND SPEAKERS The rear panel of the APA-4320 contains power and speaker connections as shown below. Figure 2- 1. 4. Left Front Speaker Output Right Front Speaker Output Remote Turn-on Input Ground Input 5. 8. Battery + 12v Input 40 Amp Fuse Left Rear Speaker Output Right Rear Speaker Output 5 4 Channel Power System Amplifier APPLICATIONS The Clarion APA-4320 4-channel car audio amplifier can be used in a variety of system applications. 4-Channel Full-Range Stereo System Figure 3 - In this application, the APA-4320 is used as a 4-channel amplifier to drive four full-range speakers in stereo. 6 Owner's Manual 4-Channel Stereo System 2-Channel High-Pass, 2-Channel Low-Pass Figure 4 - In this 4-channel system, the APA-4320 drives a pair of stereo satellites for the front and a pair of subwoofers for the rear. Use a fuse rated to the total current consumption of the amplifier(s). Adding an external fuse will protect the electrical system from short circuits that can cause a fire. 11 4 Channel Power System Amplifier 6. Connect the amplifier's positive (+) lead via a fuse directly to the positive (+) terminal on the battery. Use red-insulated 10-gauge (or larger) wire for the amplifier's positive (+) power lead and the same-gauge black insulated wire for the ground. When replacing the amplifier's fuse, always use one having the same current rating. Substituting a higher-rated fuse or a slow-blow type can result in serious damage to the amplifier. Make sure that your vehicle's electrical system (alternator, battery, etc. ) is capable of handling the additional load. If you are planning a multi-amplifier system, you may need to add a second battery and possibly upgrade the alternator with a higher-output rated model. To avoid noise problems, run the amplifier's positive (+) power lead along one side of the vehicle from the battery. Run the remote turn-on wire and RCA audio cables down the center, and route the speaker wires along the remaining side. When creating passage holes for the power wire, use grommets to eliminate any sharp edges created during drilling. [. . . ] IN CASE OF 2 YEAR WARRANTY FOR CLARION PROAUDIO PRODUCT, PROOF OF INSTALLATION BY AUTHORIZED DEALER IS REQUIRED. INFORMATION ABOUT CLARION AUTHORIZED WARRANTY SERVICE CENTERS MAY BE OBTAINED BY CONTACTING OR WRITING CLARION CORPORATION AT THE ADDRESS LISTED BELOW. 2. This warranty will become void if service performed by anyone other than an approved Clarion Warranty Service Center results in damage to product. This warranty does not apply to any product which has been subject to misuse, neglect or accident, or which has had the serial number altered, defaced or removed, or which has been connected, installed, adjusted or repaired, other than in accordance with the instructions furnished by Clarion Corporation. [. . . ]