Please Read First

CAUTION: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside. Refer servicing to qualified service personnel.

WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electrical shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation maintenance (servicing) instructions in the literature 7accompanying the appliance.

PRECAUTIONS:

The amplifier is a wideband design with substantial power output capability. Certain precautions must be taken to ensure proper operation.

1.Never expose the unit to moisture

2.Never plug an input cable into the amplifier while the amplifier is turned on.

3.Never apply the “thumb test” (touching the “hot” lead of the input cable with your finger) to the tip of the input cable or input jack of the amplifier. RF rectification and/or hum will be created and could cause damage to the loudspeakers. ATI will not be responsible for damage to the loudspeakers due to improper use of the equipment.

4.Under no circumstances should the output terminals of the amplifier be short-circuited.

5.Avoid restricting the airflow around the unit. Good airflow is necessary to help insure proper operation.

6.Be sure that the loudspeakers connected can handle the output power of the amplifier at the loudspeakers rated impedance. The warranty on the amplifier does not cover damage to loudspeakers that have inadequate power handling capabilities.

7.Do not stack other system components or any other materials directly on top of the unit. The heat dissipating system of the amplifier depends on free flowing air around the chassis.

Page 2

Safety Instructions

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.

Read all the safety and operating instructions before connecting or using this unit.

All warnings on the unit and in this operating manual should be adhered to.

All operating and use instructions should be followed.

Do not use this unit near water: for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool.

This unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings: or placed in a built-in installation, such as bookcase or cabinet, that may impede the flow of air through its ventilation openings.

The unit should be situated away from heat sources such as radiators, heat registers, stoves, or other devices (including amplifiers) that produce heat.

The unit should be connected to a power-supply outlet only of the voltage and frequency marked on its rear panel.

The power-supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit.

Clean unit only as recommended in this instruction manual.

The power-supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time.

Care should be taken so that objects do not fall, and liquids are not spilled, into the enclosure through any openings.

The unit should be serviced by qualified service personnel when: A. The power cord or the plug has been damaged; or

B. Objects have fallen, or liquid has been spilled, into the unit; or

C. The unit has been exposed to rain, or liquids of any kind; or D. The unit does not appear to operate normally, or exhibits a

marked change in performance; or

E. The device has been dropped, or the enclosure damaged.

To prevent electric shock, do not use the polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.

AT1800 Series specifications

The Amplifier Tech AT1800 Series is a groundbreaking line of high-performance audio amplifiers designed for both professional and consumer applications. Renowned for their exceptional sound quality and robust build, these amplifiers have become a staple in various audio environments, including live sound, installations, and studio settings.

One of the standout features of the AT1800 Series is its advanced Class D amplification technology. This ensures not only high efficiency but also reduced heat generation, allowing these amplifiers to run cooler compared to traditional Class A or AB amplifiers. This efficiency translates to less power consumption, making the AT1800 Series an environmentally friendly choice while still delivering an impressive amount of power. With power ratings typically ranging from 1800 watts to 2400 watts, the AT1800 Series is capable of driving large speaker systems with ease.

Another significant characteristic of the AT1800 Series is its impressive signal-to-noise ratio, which results in clear, distortion-free sound even at high volumes. The amplifiers are equipped with high-quality components such as toroidal transformers and high-grade capacitors, which contribute to the overall audio fidelity. Users can expect crisp highs, detailed mids, and powerful lows, making these amplifiers suitable for a variety of musical genres and audio content.

The user-friendly interface of the AT1800 Series includes intuitive controls and LED indicators that provide real-time feedback on performance. The amplifiers also feature built-in protection circuitry, which safeguards against overload, short circuits, and thermal issues, ensuring reliable operation throughout extended use.

Connectivity options on the AT1800 Series are extensive, featuring both balanced and unbalanced inputs, making integration with existing audio systems seamless. The series is also equipped with output connections capable of accommodating a wide range of speaker configurations, allowing for flexibility in setup.

Moreover, the rugged chassis of the AT1800 amplifiers is designed for durability. Its lightweight yet sturdy construction ensures that the amplifiers can withstand the rigors of transport and installation while still being aesthetically pleasing for front-of-house setups or permanent installations.

In summary, the Amplifier Tech AT1800 Series combines innovative technology with superior sound quality and durability, making it an excellent choice for professionals and audiophiles alike. Its blend of efficiency, high performance, and versatile connectivity options solidifies its position as a leading player in the audio amplifier market.