The AHB2 was one of only 11 finalists in Stereophile's "Amplification Component of the Year" category. The finalists included 6 power amplifiers, 2 preamplifiers, 2 integrated amplifiers, and 1 headphone amplifier. This elite selection of amplification products included power amplifiers ranging in price from $2,995 (Benchmark AHB2) to $52,000 a pair (Vandersteen M7-HPA).
At $52,000 the Vandersteen includes a chassis milled from a solid billet of aluminum, liquid cooling and a vibration dampening suspension. It is an impressive example of mechanical engineering and industrial design.
At $2,995, the Benchmark AHB2 delivers the quietest, cleanest power available at any price.
The AHB2 proves that top-quality audio can be affordable.
It's not the first time I've heard Error-Correction amplifiers, but those were prototypes that weren't working all too well. Classic feedback, TIM-free design was better, so I was afraid that AHB2 might be “wrong” somehow. It took a little bit of “leap-of-faith” to buy one, but I could not ignore the advice I was given about it, as it was given by people that are insiders in this Audio industry of ours. I'm happy to say that my thoughts of Error Correction approach being maybe wrong, could not be farthest from the truth.
What can I say ... maybe the shortest way to summarize it would be this: the AHB2 is the end of the journey for me. I have no desire for ever going back to typical multi-thousand Dollar High-End amplifiers.
- Aleksandar Radisavljević, Founder and Director of RAAL
"Benchmark Media Systems Pro-centric products tout exceptional specifications, and their AHB2 amplifier--developed in tandem with engineers from THX and using their patented HX Achromatic™ Audio Amplifier technology—uses some rather unusual patented designs to get to those remarkable spec numbers."
"These two partners in musical misbehavior sound great together and cost less--with Benchmark cables included—than my Pass XA 30.8 amp alone. To be sure, my reference Pass is a fantastic amplifier, but the AHB2 has its own charms that I found played to my own listening biases."
"Yep. Good stuff, those BM boys."
- Gary L Beard, Positive-Feedback
"Used within its 100Wpc rating, this is in any practical sense a perfect power source, with by far the lowest measured noise and distortion of any amplifier currently on the market."
"... if you need more power, buy two and strap them for dual mono at 380 watts a side."
"Either way, power just doesn't get any cleaner or purer than this."
"Neutrality and accuracy are the names of its game ... a sense of being plugged right into the source."
"I was happy to have finally heard the Benchmark AHB2 power amp that Kal Rubinson and so many others have raved about."
"AHB2's output power ... easily confirmed the specs given by the company itself."
"Based on this performance, the amplifier seems more than capable of driving difficult loads."
"Damping factor was estimated above 200, therefore, no system frequency response discrepancies, due to loudspeaker's impedance variability, should be expected."
"In distortion measurements, AHB2's behavior was impressive ..."
"The amplifier's spectral behavior does not seem to change significantly with a 4-Ohm load at its outputs."
"This stable and load-independent behavior of the output stage is something not often encountered."
"This performance clearly shows that the Benchmark/THX design approach works ... the result is a power stage with very low distortion, indeed."
"The noise performance of the amplifier was, also, top-class ... there is an apparent absence of noise components from the power supply ... this is a remarkable behavior, especially with the output stage under load conditions ..."
- Dimitris Stamatakos, AVMENTOR.net
"Benchmark dared to engage their power amplifier project from a different angle, discarding the standard approach ... and certainly succeeded. The theoretical advantages of their choices are both evident in the laboratory and heard during the listening sessions, thus justifying the whole approach."
"Based on a very interesting set of ideas, with a long history but few examples of a practical application, the Benchmark AHB2 could serve as a convincing example of what the future of power amplifiers can be. Combine it with a renowned D/A Converter like the DAC2 HGC, and what you have is a top quality system from which only the loudspeakers are missing!"
"Overall, the DAC HGC/AHB2 pair is the best preamplifier/power amplifier we had the opportunity to listen to in recent years in this price range."
- Dimitris Stamatakos, AVMENTOR.net
"Neat in construction, busy in terms of features and small in stature, the AHB2 is quite remarkable in how it goes about its business of delivering music. I’ve seldom heard such a balanced, easy on the ear power amplifier as this that also provides tonal accuracy plus an attractive space in the midrange. The AHB2 would be an ideal fulcrum to any hi-fi system, acting as the heart around which you can build up your hi-fi chain. It’s dependable and rock solid. The perfect heart to any hifi."
- Paul Rigby, The Audiophile Man - audiophileman.com
"Benchmark products ... are made for the professional market (where they are ubiquitous) and designed to the most exacting standards of performance and reliability."
"Within a remarkably short period of time ... my mental processes shifted from comparison mode to enjoying music, all the attention drawn to the source material and the rare sensation of feeling as if I were listening back to the source."
"... the AHB2 gets as high, enthusiastic, and confident a thumbs up as my arm is capable of reaching."
- Paul Seydor, The Absolute Sound, April 2016
"In his listening tests, Kalman Rubinson discovered 'much more apparent low-level detail in already-familiar recordings' - a characteristic he credited to the Benchmark's evident noiselessness - and a tonal balance that 'sounded more right' than any of the other amps on hand."
"An extraordinary amplifier" - JA
"In measuring the AHB2 and attempting to confirm its specified very high signal/noise ratio, John Atkinson observed nonlinearities in his testing equipment that 'Haven't affected the measured performance of other amplifiers I've tested, but they were detectable with the AHB2's very low intrinsic distortion and noise.' His conclusion: 'an extraordinary amplifier.'"
The AHB2 shares the elite "Class A Recommended" category with amplifiers costing 10 to 20 times more.