User manual AUDIOVOX AXT693

[. . . ] Please follow the wiring instructions carefully for the type of system being used. The last lead to be connected is the wire to the positive(+) terminal of the battery. Connect this wire only after having completed and checked all other connections to the amplifier. By nature of its design, a power amplifier generates heat and requires good air circulation around it to dissipate that heat. [. . . ] The leads to the battery and chassis ground must be of a thick enough gauge to provide this voltage to the amplifier. We recommend #16 gauge wire or thicker (smaller gauge #) for the battery and ground leads. Make certain that the speakers to be used with this amplifier are capable of handing the output power (wattage) of the unit. Use of speakers not rated for the output of this amplifier may cause damage to or failure of the speakers for which Audiovox will not be liable. -2- INSTALLATION INSTRUCTIONS 1. Select a mounting area where the amplifier will have sufficient air circulation for proper cooling. Inadequate air circulation will cause the temperature of the amplifier to rise and will trigger the thermal protection mode. Place the amplifier on the mounting surface and mark the locations of the four mounting holes as shown in the illustration. Remove the amplifier and drill a 1/8" hole at each of the four locations. INSTALLATION DIAGRAM SCREW CAUTION: Before drilling the holes, look at the underside of the mounting surface. Always check carefully to avoid drilling into wiring, braces, fuel or brake lines. CHECK BEFORE YOU DRILL! 4. Secure the amplifier to the mounting surface using The self-tapping screws provided. MOUNTING SURFACE DRILL 1/8" HOLE -3- WIRING INSTRUCTIONS The wiring of your amplifier will depend on the system and speakers you are using but will either be a 4-Channel, 3-channel, 2-channel, or mixed-mono application. The following pages illustrate the input and output wiring for these types. If low-level outputs are provided from the car stereo, it is recommended that the low-level inputs be used for lowest distortion and best performance. Use good quality shielded audio cables with RCA plugs at both ends to connect the stereo to the amplifier and keep the cable lengths to a minimum to avoid noise. If the car stereo does not provide low-level outputs, the amplifier may be connected via the speaker (high-level) outputs from the stereo. Wire the speaker leads from the car stereo to the 5-pin adaptor harnesses as shown in the diagram (shielded cable is not required for this application) and plug the connectors into the mating High-Level Input socket on the amplifier. Carefully splice and insulate all wire connections. CAUTION: Use either the low-level or the high-level inputs on the amplifier. DO NOT use both input levels at the same time. -5- INPUT WIRING DIAGRAM CAR STEREO Left Right Gray Brown Black Green White RCA TYPE SHIELDED EXTENSION CABLES (NOT INCLUDED) HIGH-LEVEL (SPEAKER) INPUT (WIRE SIDE VIEW) IMPORTANT LOW-LEVEL INPUT USE EITHER HIGH-LEVEL OR LOW-LEVEL INPUT, NOT BOTH. HI-INPUT PWR R L+ L GND R R+ MIN MAX L GAIN 21 -6- WARNING! NEVER COMBINE (BRIDGE ) OUTPUTS FOR USE WITH 2 SPEAKER. NEVER GROUND NEGATIVE SPEAKER LEADS TO CHASSIS GROUND. FAILURE TO WIRE CORRECTLY MAY CAUSE DAMAGE TO THE AMPLIFIER. OUTPUT WIRING DIAGRAM EXISTING SCREW OR BOLT CLEAN PAINT, RUST, DIRT OR GREASE FROM AREA FOR GOOD CONNECTION. GROUND METAL SECTION OF VEHICLE RIGHT SPEAKER FUSE 3 BATT REM GND RIGHT LEFT GROUND USE # 16 GAUGE WIRE CAR STEREO BATTERY FOR 12 VOLT USE ONLY AUTO-ANTENNA LEAD LEFT SPEAKER -7- OPERATION 2 1 2 Level (Gain) Controls The amplifier is capable of operating from sources supplying a wide range of input levels. The Level controls should initially be set to the mid-rotation position. If it is found that there is not enough output even when the volume control on the car stereo is at its maximum setting, adjust the Level control to increase the output from the system. If, however, there is still output from the amplifier when the car stereo volume control is at its minimum setting, orthe output level increases too fast with a small rotation ofthe volume control, adjust the Level control to decrease the output from the system. Once the correct setting is found, these controls should not require any further adjustment. HI-INPUT PWR R L+ L R+ R GND MIN MAX L GAIN 3 FUSE BATT REM GND RIGHT LEFT After initial set-up, the amplifier should not require any further adjustment unless there is a change in the car stereo or speaker system with which it is used. 3 Fuses The circuitry of the amplifier is protected from damage by an automotive-type fast-blow fuse. [. . . ] To obtain repair or replacement within the terms of this Warranty, the product is to be delivered with proof of warranty coverage (e. g. dated bill of sale), specification of defect(s), transportation prepaid, to an approved warranty station or the Company at the address shown below. This Warranty does not extend to the elimination of externally generated static or noise, to correction of antenna problems, to costs incurred for installation, removal or reinstallation of the product, or damage to tapes, compact discs speakers, accessories, or vehicle electrical systems. This Warranty does not apply to any product or part thereof which, in the opinion of the Company, suffered or has been damaged through alteration, improper installation, mishandling, misuse, neglect, or accident, or by removal or defacement of the factory serial number/bar code label(s). [. . . ]