"Benchmark has been around for a long time. In fact, they are one of the early Audiophile pioneers of USB DACs ... I had always thought of them as more of a digital conversion company, and not an amplifier company—until the AHB2 came about."
"A PF colleague of mine (Steven Lefkowicz) said... Dude, you HAVE to try the Benchmark in your system (which at the time was going through a gamut of speaker changes as part of a myriad of reviews being done for PF) to which I replied, wow, they have an amp?"
"I was immediately taken aback with the level of detail given to this unit. Just one glance at the back plate will tell you that this is a well-engineered piece of equipment. Fully Balanced = Check. Speakon Outputs = Check. Bridging Support = Check. Input Sensitivity Adjustment = Check. 12v Trigger support = Check."
"So, how does it sound, after all of that? Well, this thing is no slouch. It's phenomenal! Gobs of power, detail, finesse and control."
- Peter Davey, Positive Feedback
"As with a Class A amplifier, I could detect the muscle of the AHB2 and hear it in the sheer weight of presentation in the lower octaves."
"The AHB2 can drive virtually any speaker load with significant power--especially in monaural mode--yet it never lacked finesse on delicate passages."
"It is a technologically advanced and remarkable amplifier ..."
- Ben Shyman, Home Theater Review
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."
"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