Table of Contents, Features, Unpacking

Please Read First	Page 2
Safety Instructions	Page 2
Table of Contents	Page 3
Introduction	Page 3
Features	Page 3
Unpacking	Page 3
Placement	Page 3
Handles and Rack Mounting	Page 3
Getting to Know the Rear Panel	Page 4
Connecting Your Amplifier	Page 4
Input Connections	Page 5
Speaker Connections	Page 5
Making Rear Panel Connections	Pages 6 & 7
Power Control Connections	Page 8
AC Line Connector and Power Cord	Page 8
Amplifier Operation	Page 8
Manual On	Page 8
Automatic On	Page 8
Peak Indicator Light	Page 8
Main Circuit Breaker	Page 9
Protection Circuitry	Page 9
ATI Service Information	Page 9
Care and Maintenance	Page 9
Trouble Shooting	Page 9
A Few Words About Hum and Noise	Page 10
Potential Ground Loops in a Complex A/V System...Page 10
Power Amplifier Specifications	Page 11
Warranty Terms and Conditions	Page 12

AT2000 & AT300 Series

Pure Balance Power Amplifiers

Congratulations! Thank you for purchasing an ATI Power Amplifier. Designed, engineered and manufactured in the United States, it has been carefully designed to deliver the best possible audiophile-grade performance as well as the most reliable operation.

The AT3000/AT2000 Series are comprised of twelve models; AT3002/AT2002 two-channel amplifiers, AT3003/AT2003 three-channel amplifiers, AT3004/AT2004 four-channel amplifiers, AT3005/AT2005 five-channel amplifiers, AT3006/ AT2006 six-channel amplifiers and the AT3007/AT2007 seven-channel amplifiers. This manual covers all twelve models with the only difference being the number of channels and/or power output.

In order to receive the maximum performance from your new amplifier, please take a few minutes to read this manual. This important information will help you make certain that the amplifier is properly configured for operation with the rest of the equipment in your system. If you have any questions about this product, its installation or operation, please contact us via e-mail at amptech@ix.netcom.com or via telephone at 888-777-8507.

Features

Your new ATI amplifier is a state of the art, high performance, audio component. It is built utilizing totally complementary circuitry. A custom-designed, toroidal transformer drives the high current power supply with multiple windings for each channel. Each output module employs an advanced optically coupled protection circuit that replaces the need for bothersome fuse changes. The amplifier is cooled by convection through the use of custom designed, efficient heat sinks.

Unpacking

The carton and packing materials used in shipping your new amplifier were specially designed to protect it from the shock and vibration of shipping. We strongly suggest that you save the carton and packing materials to use if you move, or if the unit ever needs to be shipped back to us for any reason. Should you discover that your amplifier has been damaged during shipping, please contact your dealer or ATI immediately and request the name of the carrier so a written claim may be made.

THE RIGHT TO A CLAIM AGAINST A PUBLIC CARRIER CAN BE FORFEITED IF THE CARRIER IS NOT NOTIFIED PROMPTLY IN WRITING AND IF THE SHIPPING CARTON AND PACKING MATERIALS ARE NOT AVAILABLE FOR INSPECTION BY THE CARRIER. SAVE ALL PACKING MATERIALS UNTIL THE CLAIM IS SETTLED.

Placement

During normal home operation the heat sinks on the amplifier will become warm. However, there are instances during high level playback into low impedance speakers when the heat sinks will become much warmer than usual. To ensure the amplifier’s trouble-free operation, it is necessary to provide adequate ventilation for the heat sinks. Your amplifier should be kept away from external sources of heat such as radiators and hot-air ducts. The amplifier should never be placed with other heat-producing components in a cabinet or enclosure lacking free airflow. Do not stack other components on top of your amplifier.

Handles and Rack Mounting

The handles on the AT3000/AT2000 Series may be removed by using an Allen wrench. Carefully remove the four socket-head cap screws and replace them with screws of the same diameter and pitch, but only 1/2-inch long. Do not use longer bolts as they may penetrate too deeply and damage internal parts. Your amplifier may be mounted in a standard 19-inch rack by using the optional 19-inch rack mount panel.

CAUTION: THE RACK MOUNT PANEL CANNOT SUPPORT THE WEIGHT OF YOUR AMPLIFIER. BE SURE TO MOUNT THE UNIT ON A STRONG, WELL-SUPPORTED SHELF.

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AT3000, AT2000 specifications

Amplifier Tech is a renowned name in the audio engineering sphere, and its AT2000 and AT3000 models exemplify the brand's commitment to quality and innovation in sound amplification. These amplifiers are designed to cater to both professional audio applications and high-fidelity home use, offering a range of features that suit various needs.

The AT2000 model is characterized by its compact yet powerful design. It delivers a robust output of 2000 watts, making it suitable for small to medium-sized venues. One of the standout features of the AT2000 is its class D amplification technology, which ensures high energy efficiency while maintaining exceptional audio fidelity. With a wide frequency response, the AT2000 can reproduce a full spectrum of sounds, from deep bass to crisp highs, allowing for a rich listening experience.

Additionally, the AT2000 includes advanced thermal management systems that prevent overheating during prolonged use, ensuring reliability even in demanding situations. The amplifier also features built-in protection circuits that safeguard against short circuits, overloads, and temperature spikes, adding to its durability and longevity.

On the other hand, the AT3000 takes power and performance to the next level. With an output of 3000 watts, this amplifier is designed for larger venues and more demanding applications. It employs a higher-grade class D technology, optimizing the signal-to-noise ratio for clearer audio output. One notable upgrade in the AT3000 is its digital signal processing (DSP) capabilities, which allow users to fine-tune audio settings to match specific acoustics of any environment.

The AT3000 also comes equipped with multiple input options, including XLR, ¼-inch, and RCA connectors, providing versatility for various sound sources. The intuitive user interface allows for straightforward operation, with adjustable thresholds for loudness and clarity. Furthermore, both the AT2000 and AT3000 feature lightweight and rugged construction, making them portable and stable for transport.

In conclusion, the Amplifier Tech AT2000 and AT3000 offer unparalleled performance for audio professionals and enthusiasts alike. From their innovative technologies to their robust features, these amplifiers stand out in the competitive landscape of audio equipment. Whether you're setting up for a live performance or enhancing your home audio system, the AT2000 and AT3000 provide the quality and reliability needed to deliver an exceptional sound experience.