"As I got into serious listening of recordings, I was impressed by the AHB2's "smooth" factor. Although it uses bipolar output devices, its tonal delivery ease reminds more of MOSFET designs. Drum cymbals and the upper register of the Bernhard album’s piano sounded fantastic without any edge, grit or harshness."
"For those who listen with very accurate, discerning speakers, an extra 20 dB of lower noise could be heard — in terms of ultra detail that may be hiding in the noise of an average audiophile amp."
"The -130 dB noise/dynamic range just gets us that much closer to the live music signature that we yearn to hear from our beloved electronics."
"The Benchmark brings out nuances of reverb, quick percussive guitar attack with amazing clarity, but no over the top edginess that lesser bi-polar (and even some MOSFET amps)."
- John Gatski, Everything Audio Network