"The DAC2 DX had some of the lowest distortion of any DAC we have ever tested"
"Listening to my music collection via USB was a pleasure with this DAC. It had a very musical sound, reminding me of a Class A triode tube amplifier. When you check out the bench tests, you will see why."
"IMD was less than 0.001%, so I have to say, “Excellent”. See any peaks at 14 kHz, 21 kHz, etc? Neither can I. Now we know why the DAC2 has a bit of Class A triode in it. When peaks are present, they are only at the second harmonic, which is the triode signature."
"The DAC2 is one of the few D/A converters that can handle intersample overs without DSP overloads or analog clipping. DSP overloads occur in most DACs and these cause bursts of non-harmonic distortion. Some DACs avoid the DSP overloads but still exhibit analog clipping of intersample peaks. In contrast, the DAC2 cleanly reproduces intersample peaks. This seems to be a big issue from an audibility standpoint when listening to CD-format and MP3-format sources."
"I have used Copland’s Fanfare for the Common Man as a test track more than any other. That is because it has everything: tremendous dynamics (it’s an early Telarc disc and there is no compression), very loud percussion, blaring brass, and whatever else you want to throw in there – it’s just a great recording."
"The sheen of the gong and bright overtones of the brass were stunning through the Benchmark DAC2 DX. This may be an old DAC in HiFi time, but it is certainly up to date in sound."
"The Benchmark DAC2 DX represents a product that was initially released several years ago. They perfected it over that time by small changes and addition of features. The result is a DAC that has virtually inaudible distortion, and a full set of codecs, all at a price of less than $2,000. This compares to some other DACs that are new and unproven in reliability. It makes sense to put aside that, “Got to have the latest and greatest,” attitude that most of us have, and consider a DAC that has had several years to work out all the bugs and really deliver a superior sound."
"For my money, the Benchmark DAC2 DX represents one of the best values in high end audio today."
- John E. Johnson, Jr., Secrets of Home Theater and High Fidelity
"The AHB2 easily outperforms the DIY Hypex NC400 I had tested before which used to be the best amp I had tested."
"THD+N versus output level looks far cleaner than anything I have tested before."
"Intermodulation distortion versus power level shows the same story of clean power."
Signal to Noise Ratio:
(unweighted, 22.5 kHz BW)
Ch1: 130.286 dB
Ch2: 130.180 dB
-0.3 dB at 20 kHz
-3 dB down at 200 kHz!!
"Since this is not a switching amplifier, there is no filter there allowing the bandwidth to go to 200 kHz and beyond."
Stereo Power into 4 Ohms:
"We have 185 watts of power at incredibly low distortion of 0.00016%, besting the company specifications."
Bridged Mono Power into 4 Ohms:
"500 watts into 4 ohm! Stunning 0.00026% distortion at 500 watts!!"
"It goes without saying that the Benchmark AHB2 breaks new ground ... gets my strongest recommendation."
- Amir Majidimehr - AudioScienceReview.com
"The AHB2 power amps ... are fantastic."
"I use them as mono blocks due to my power hungry speakers."
"I hear clarity, precision and an openness in the treble that I haven't heard in my speakers before."
"The HPA4 line and headphone preamp and the power amps are made for each other..."
- Ulrike Schwarz, Anderson Audio NY
"The effortless and free-flowing nature of the Martin Logans paired up nicely with the transparent AHB2 amplifiers."
"The tonality and realism of the instruments were spectacular. An alto saxophone sounded as if it was in the room with me, and the pitch and timbre of both male and female vocals were absolutely spot-on. It was clear that nothing in this system was getting in the way of the music."
"Their room had a remarkable degree of transparency that made every listener feel closer to the music."
- Drew Gagliano, TheAudioBeatnik.com