ATI Announces New Line of Class D Amps

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ATI-AT5XXNC.jpgATI has introduced a new amplifier line that uses Hypex N-Core Class D technology. The new AT5XXNC Series includes two groups. The AT52 group offers 200 watts RMS per channel at eight ohms, in configurations from two to eight channels. The AT54 group is rated at 500 watts RMS per channel at eight ohms and is available in two-, three-, and four-channel designs. These are the first ATI amps to use micro-processor control for turn-on delay and to feature automatic AC power recognition and configuration. Prices range from $1,895 to $3,995.

From ATI
Amplifier Technologies, Inc. has added a new series of amplifiers. The AT5XXNC amplifiers use Hypex N-Core Class D output modules with ATI designed input buffers and linear power supplies and are available with two power configurations. The AT52XNC amps are rated at 200W RMS per channel at eight ohms with 300W RMS at four ohms and are available with two to eight channels. The AT54XNC amplifiers use two N-Core modules per channel in a differential bridged output configuration delivering 500W RMS per channel at eight ohms and 900W RMS at four ohms. The AT54XNC amplifiers are available with two, three or four channels.

These AT5XXNC series amplifiers break new ground in other ways. They are the first ATI amplifiers to use micro-processor control for turn-on delay and feature automatic AC power recognition and configuration. The amplifiers not only recognize whether they are hooked up to 117V or 230V nominal power, they automatically self-configure. The amplifiers also incorporate a new and novel "sleep" circuit. When the amplifier receives no input signal for a period of 10 minutes, power is removed from the output modules and a front-panel LED begins to flash. As soon as an input signal is detected on any channel, normal playback operation resumes instantaneously.

Per Morris Kessler, ATI's president and chief engineer, "We are excited to offer amplifiers with ATI's legendary high performance and reliability in designs that reduce amplifier weight by up to 50%." 

With rated distortion below 0.05 percent and signal-to-noise ratio of 123 dB (minimum, referenced to rated output), each amplifier in the series is capable of playing back the full dynamic range available on today's lossless recordings.

Pricing: MSRP
AT522NC Stereo Amplifier (200W RMS per channel) $1,895.00
AT523NC 3-channel Amplifier (200W RMS per channel) $2,295.00
AT524NC 4-channel Amplifier (200W RMS per channel) $2,595.00
AT525NC 5-channel Amplifier (200W RMS per channel) $2,995.00
AT526NC 6-channel Amplifier (200W RMS per channel) $3,295.00
AT527NC 7-channel Amplifier (200W RMS per channel) $3,695.00
AT528NC 8-channel Amplifier (200W RMS per channel) $3,995.00

AT542NC Stereo Amplifier (500W RMS per channel) $2,595.00
AT543NC 3-channel Amplifier (500W RMS per channel) $3,295.00
AT544NC 4-channel Amplifier (500W RMS per channel) $3,995.00

All ATI AT5XXNC amplifiers are covered by ATI's seven-year transferrable warranty and are available in standard (17") chassis. A 19" rack-mount adapter is available.

Additional Resources
ATI AT6002 Stereo Amplifier Reviewed at HomeTheaterReview.com.
ATI Introduces 4000 Series Amplifiers at HomeTheaterReview.com.


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