ATI Amplifier Technologies AT4005

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ATI AT4005 Power Amplifier: Exceptional Performance and Audio Quality

The ATI AT4005 power amplifier is a true masterpiece of performance and audio quality, designed to meet the needs of the most demanding Home-Cinema and Hi-Fi systems. In this article, we will explore in detail the exceptional characteristics of this amplifier and show you how it can help you achieve an unparalleled sound experience. Whether you are a passionate audiophile or a cinephile looking for powerful and immersive sound, the ATI AT4005 is the amplifier you need.

Superior Quality Design

The ATI AT4005 power amplifier is designed, manufactured, and assembled in ATI’s factory in Los Angeles, California, making it a true made in USA product. This meticulous attention to detail and exceptional manufacturing quality are reflected in the amplifier’s audio performance.

Power and Versatility

The ATI AT4005 is a powerful amplifier capable of efficiently powering any speakers. It delivers a real power of 200 W per channel into 8 Ω and up to 300 W per channel into 4 Ω in class AB. This abundant power allows you to enjoy clear, precise, and dynamic sound, regardless of the audio source you are using.

ATI’s Signature Series

The ATI AT4005 is part of ATI’s Signature series, which is distinguished by a symmetrical circuit configuration and a unique input stage with bi-differential output stages. This design approach preserves the advantages of symmetrical designs and reduces noise by 50%. The Signature series amplifiers use current feedback for faster response and virtually unlimited slew rate, allowing them to reproduce the most demanding musical and cinematic recordings with exceptional accuracy.

Optimized Performance with ThermalTrak Technology

The Signature series amplifiers are equipped with ThermalTrak output devices that provide an integrated temperature sensing process with the output transistor. This technology enables real-time bias performance, resulting in improved stability and a reduction in DC offset at the output to insignificant levels. This allows you to enjoy accurate and distortion-free audio reproduction.

Strict Quality Standards

ATI is one of the few manufacturers to comply with the very strict FTC (Federal Trade Commission) measurement standard. The AT4000 series amplifiers are rated at 200 W RMS from 20 Hz to 20 kHz with a maximum THD of 0.03% into 8 ohms, all channels driven, and 300 W RMS into 4 Ω under the same conditions. With a signal-to-noise ratio of - 126 dB at full power, these amplifiers are capable of reproducing the entire dynamic range available on today’s high-definition movie and music recordings.

Rigorous Testing Process

Each ATI amplifier undergoes a unique and rigorous testing procedure to ensure long-term durability and performance. First, all assembled printed circuit boards are thoroughly visually inspected and then subjected to performance tests. The circuit boards are then installed in the amplifier and tested for every function and parameter. Next, the amplifier is placed on a “torture” rack to test for any potential component failures. Finally, each amplifier undergoes critical listening and a final functional test to ensure it meets the highest quality standards.

Connectivity and Practical Features

The ATI AT4005 amplifier features versatile connectivity to accommodate various audio setups. On the rear of the amplifier, you’ll find an unbalanced RCA input and a balanced XLR input, giving you more options for connecting your audio sources. Additionally, it is equipped with an input selector switch and a pair of gold-plated speaker outputs for each channel. The amplifier also includes a trigger to automatically turn on your amplifier when triggered by your preamplifier, as well as a power socket for the detachable power cord.