Scott Wilkinson from AVS Forum sisited our CES demo suite and came away impressed. You can see the video below.

Scott Wilkinson

Editor of the AVS Forum, AVS Forum

Jerry Del Colliano

Home Theater Review

Secrets of Home Theater and High Fidelity – ATI AT6002
Plus Best of 2014 Award

Chris Heinonen and Dr. David Rich reviewed our new Signature Series stereo amplifier. Here are their highlights:

Innovative amp that offers incredibly high performance… High-end build quality.
…feels and sounds like a statement product… Incredible beast.
The AT6002 has the largest dynamic range of any amplifier I have ever heard. I could place my ear next to the tweeter of the Revel f208 and hear nothing when the system was idle. Not even a slight hiss. No amplifier has been this quiet in my system.
Compared to my reference amplifier, the ATI AT6002 removed a layer of granularity.
I could not make the amplifier lose its cool.
The 128.7dB SNR at 300 Watts has a bit equivalent of 21 bits, which is better than any DAC now on the market.
No power supply hum spurs are seen above -135dB, a remarkable result for a power amp at full power.
The ATI AT6002 …is a giant in the world of power amplifiers… (need) never be replaced.


Chris Heinonen & Dr. David Rich

Home Theater Hifi

Sound and Vision, October, 2014 – ATI AT6005 Plus Top Pick of the Year Award, 2014

ATI’s Beastly AT6005 Amp, 116 Pounds of Pure Listening Pleasure by David Vaughn
If I were in the market for a new amp, the ATI would be at the top of my list, due to is low noise and seemingly endless power output. Highly recommended.


David Vaughn

Sound & Vision

ATI’s “True Balance” Differential Design Architecture

Getting back more specifically to amps, I really need amplifiers that can do certain things for me, and the ATIs have all that, plus more. I want to go full balanced instead of single ended, and ATI handles that, plus the “true balance” differential design architecture of the amp really fits the bill for me. I want lots or headroom, and with three 200W channels per amp being fed off two gigantic toroidal transformers, there’s no bottom to this well–or at least I can’t find it.

About that 200W/channel–it’s not really true. Are they liars? Well, no, my actual measurements find them to be running about 210-220+W/channel, all channels driven from full range 20Hz to 20kHz noise. So it’s not your typical, lame 200W/channel with one channel driven only at 1kHz.

A nice surprise is the soft start circuitry. I have a single 20 Amp circuit dedicated to this system, and with the amps connected via DC triggers to the pre, a push of the on button brings the whole system up in an orderly fashion, without pops, thumps, thrown breakers, or house wide brown outs. I can take the Niles IPC6 sequencer right out of the system.

All in all, I got everything I needed in an excellent pair of amps at a great price, made locally in CA, USA. Plus, I didn’t pay extra for what I didn’t need: fancy billet Aluminum front, big prestige brand name, expensive marketing campaign, and huge overhead. Instead, when looking at them up close, I can see the quality construction, the attention to detail, the careful engineering, and the thoughtful, useful feature set.

These are well worth the $$$$.

 “FWIW, I own $4000 amps and I own $500 amps… My ATI amp is the best value amp I have found out there. It has the lowest noise floor… I simply love them with my higher sensitivity horn designs. It’s the first amp in 5 years that had me saying that subjective, WOW!!”


Penngray, an AVS member with over 25,000 posts

Audio Visual Science Forum

ATI AT543nc Stereophile Review

Love It or Life It!

Amplifier Technologies, Inc. (ATI) is a well-established company founded by Morris Kessler, who first made a splash in audio in 1967 when he co-founded SAE. ATI makes a wide range of audio devices under its own name, as well as under brand names it has acquired, in­cluding B&K and Theta Digital, as well as SAE.


Kalman Rubinson

Stereophile Review

ATI AT527NC and AT524NC Amplifiers Review

Two and a half years ago, I reviewed my first ATI amplifier, and to say I was impressed
would be an understatement. The ATI Signature AT6005 five-channel amp set a new
benchmark for its designer, Morris Kessler—to the point where he put his John Hancock on
the faceplate.


David Vaughn

Sound & Vision

Home Entertainment & Design Magazine Review – ATI AT3000

With 2,100 watts of power and an elite circuit design, ATI’s AT3000 is the audio equivalent of an extreme sports car.. Any product can be refined; the question is, do the refinements substantially improve the product? In some cases—increasing a car’s horsepower, for example—the answer is usually “yes.” In others—such as substituting filet mignon for cubed chuck in a pot of chili—the answer is, unequivocally, “no.” With audio amplifiers, however, the answers are seldom so cut-and-dried.


Brent Butterworth

Home Entertainment & Review

Widesreen Review – Interview with Morris Kessler

Read the full two-part interview with Morris Kessler of Amplifier Technologies, Inc.


Gary Reber

Widescreen Review