QUALITY, RELIABILITY, & PURE BLISS 4000 WATT RMS CLASS D COMPETITION AMP A4KDN OPERATING INTSTRUCTIONS PLEASE RETAIN MANUAL FOR FUTRE USE AND REFERENCE
The Audiobahn Way To bring the product to market that excites the consumer through sound and vision from an orientation of integrity and customer service. We make you look as good as you sound. We strive to take car audio to an extreme the world has never seen, and a world that never stops evolving.
Table of Contents Table of Contents Introduction 3 Features and Specifications 4 Control and Functions 5-10 Planning / Mounting Your System 11 Wiring Diagram 12 Bridging 2 Amplifiers 13-14 Adjusting and Tuning 15 Troubleshooting 16 Warning and Disclaimer 17 Warranty 18-19 2
Introduction Dear Customer, Congratulations on your purchase of the worlds finest brand of car audio products. Here at Audiobahn Inc. we are devoted to making our musical reproduction the very best, and we are pleased you have chosen our product. Through years of engineering expertise, hand craftsmanship, and critical testing procedures, we have created a wide range of products that reproduce music with all the clarity and richness you deserve.
Features and Specifications > Class D MOSFET Amplifier > Multi-Stranded Power Supply Toroids > Double-Sided Glass Epoxy Circuit Board > Remote Bass Control with BLUE Backlight Knob > Large Display Volt meter with BLUE Illumination > 4-Way protection circuitry: Thermal, Short circuit, Over load , and DC Offsct > Dual Cooling FANS > Cobalt BLUE Illumination > Chrome Flame FAN Grills > High Gloss Chrome-Plated Finish > Nickel-plated Block Terminals > RMS Power , INTO 4 Ohms 2000W Mono > RMS Power , INTO 2 Ohm
Controls and Functions �
Controls and Functions 1. Bass Boost Gain Remote Control This plug connects the amplifier and the remote bass knob using the supplied cable. 2. Input Sensitivity Control This control adjusts the amplifier's input sensitivity. The input sensitivity is variable from 200 Millivolts to 8 volts. Turning clockwise increases sensitivity. Turning counterclockwise decreases sensitivity. This knob is not a volume control for the amplifier.
Controls and Functions 4. Low Level LINE OUT RCA Jacks The LINE OUT allows you to build a multiple amplifier system without having to use splitter cords or Y-adapters to distribute the signal. Now it is simply a matter bringing one set of RCAs into the first amplifier, then using the line out RCA jacks as the feed to the next amplifier. 5. Bass Boost Control By using the bass boost function, bass notes at 45Hz are emphasized as much as 18dB. 6.
Controls and Functions 7. Low-Pass Filter Control For use as a dedicated subwoofer channel, set the filter switch to the "LPF" (Low Pass Frequency). Adjust the variable crossover frequency with control knob as desired. The amplifier input circuit filters out everything above 50Hz ... 150Hz (dependant on the adjustment of the frequency control), so only the lowest bass notes are amplified. 8.
Controls and Functions 10. Speaker Terminals These terminals are used to wire your subwoofer(s) to the amplifier. 11. B- Terminal (Chassis Ground) To avoid unwanted ignition noise caused by ground loops, it is essential that the amplifier be grounded to a clean, bare, metal of the vehicle's chassis. This metal surface should be solid, strong and connected directly to the frame of the car. Note: GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FEET (1 METER) 12.
Controls and Functions 13. Remote Turn-on Input The remote terminal needs to be wired to the car's stereo or source unit remote turn on wire. This amplifier is turned on remotely when the vehicle's stereo is turned on. NOTE: iF YOUR RADIO DOES NOT HAVE A +12 VOLT OUTPUT LEAD WHEN THE CAR IS TURNED ON, THE "REMOTE" TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO THE VEHICLE'S ACCESSORY CIRCUIT THAT IS LIVE WHEN THE KEY IS TURNED ON. 14.
Planning and Mounting Your System Planning Your System Before beginning the installation, consider the following: a. If you plan to expand your system by adding other components sometime in the future, ensure that adequate space is left, and cooling requirements are met. If your radio/source is equipped with Pre-Amp outputs, it is possible to utilize them to drive an Amplifier and connecting (amplifier) to the 2 rear speakers. Then, use the built-in power of your radio to drive the 2 front speakers.
Wiring Diagram ��
BRIDGED Master BRIDGED Slave HEAD UNIT Bridging 2 Amplifiers IF BRIDGED SWITCH POSITION IS ON SLAVE, ALL CONTROLS ARE NON-FUNCTIONAL. ALL CONTROLS ARE NOW CONTROLLED BY THE MASTER AMPLIFIER. DES.
Bridging 2 Amplifiers When bridging the amps together follow these wiring instructions: 1. Positive (+) of the MASTER amp goes to Positive (+) of the sub 2. Positive (+) of the SLAVE amp goes to the Negative (-) of the sub 3.
Adjusting and Tuning TURNING ON THE AMPLIFIER The amplifier automatically turns on a few seconds after you turn your vehicle's ignition switch to ACC or turn on your auto sound system (depending on how you have wired the system). The POWER indicator on the top of the amplifier illuminates when the amplifier is on. Important: Your amplifier requires 30 amps or more of power from your vehicle's battery during operation.
Troubleshooting SYMPTOMS NO SOUND AMP NOT SWITCHING ON CHECK POINTS CURE Is the power LED illuminated ? ( NO ) Check fuses in amplifier. Be sure Turn-on lead is connected Check signal leads. Check gain control. Check Tuner/Deck volume level. Clean contacts on fuse holders. Is the Diagnostic LED illuminated ? ( YES ) Check for speaker short or Amplifier overheating. No power to power wire Repair power wire or connections. No power to remote wire with receiver on Check connections to radio.
Technical Assistance(800)488-8595 /tech@audiobahninc.com Warning / Disclaimer WARNING Investigate the layout of your automobile thoroughly before drilling or cutting any holes. Take care when you work near the gas tanks, lines, hydraulic lines, and electrical wiring. Do not use the power amplifier unmounted. Attach the system securely to the automobile to prevent damage, particularly in the event of an accident.
Technical Assistance (800)488-8595 /tech@audiobahninc.com Warranty Audiobahn Consumer Product Warranty Policy Audiobahn products are manufactured with the highest quality components and some of the most advanced technology available. Because of this, we recommend that you have your new products installed by an Authorized Audiobahn Dealer.(A list of Authorized Audiobahn Dealers can be found on our web page). Warranty Period: One year from the original date of purchase.
Technical Assistance (800)488-8595 /tech@audiobahninc.com Warranty Continued How to receive warranty service: Contact your local Authorized Audiobahn Dealer, or call Audiobahn at (800) 488-8595 between the hours of 9:00 AM and 5:00 PM PST. If you are having problems with your system, we recommend you check the product carefully and thoroughly to confirm that the product truly has a manufacturer defect; as opposed to abuse, or other components in the system causing the failure.
