System Review - DAC3, HPA4, AHB2 - Geoffrey Vanhouwaert, Alpha-Audio
DAC3 B, HPA4, AHB2 - "Benchmark ... the Measure of Excellence!"
AHB2 Power Amplifier
"After the arrival of the Benchmark Media Systems AHB2, I immediately thought of the matching HPA4 that colleagues Jaap and Yung were very pleased with."
"The key question, of course, was whether the HPA4 would really provide an audible improvement."
"Well you bet! The synergy between preamp and power amplifier is nothing short of magical, not to mention the DAC3 B that I got from importer Helios for the occasion."
"Not only a few curtains disappear, the whole window is gone."
HPA4 Touchscreen
"This is a great touchscreen that works very intuitively. You never have to think twice to run any function. This is where Benchmark's pro background comes into play."
HPA4/LA4 Killer Feature - "Input Gain Adjust"
"The 'killer feature' on the HPA4 for me is the ability to make each input play equally loud. Adjusting the gain so that different sources and dacs are equalized is a fantastic tool."
"Balance control is also an important feature given the fact that listening spaces are never perfect."
Remote Control - "A Beauty"
"Remote controls are a pet peeve of mine, but this one is a 'beauty'. It is beautifully made and it fits perfectly in the hand. It has just the right selection of buttons, nothing extra, nothing missing. Adjusting the volume, choosing the inputs and being able to mute every now and then are the most important features. The other settings, which you usually only have to do once, are made via the touchscreen."
HPA4 - "Permanent Place in My Reference System"
"The HPA4 has now taken a permanent place in my reference system."
LA4 - Line-Level Preamplifer
HPA4 vs. LA4 - "The HPA4 is the Best Deal"
"Initially I thought to buy an LA4 (preamp only) because I am not really a headphone aficionado and because I thought that the LA4 would perform slightly better... but Benchmark assured us that the line amplifier is identical in both devices."
"The HPA4 is the best deal because for a limited additional charge you get one of the best headphone amps on the planet."
DAC3 B - "Fits Seamlessly into the System"
"The DAC3 B also fits seamlessly into the system. So much so that we prefer it to the Metrum Acoustics Onyx in this setup. Once again proof that synergy is important."
Reference System
"There are many things that come into play when putting together a hi-fi system, one of which is synergy."
- ATC SCM19 V2 monitors
- Benchmark Media DAC3 B converter
- Benchmark Media HPA4 preamp
- Benchmark Media AHB2 power amplifier
- Metrum Acoustics Ambre streamer
- Hifiman Sundara headphones
- Roon software
Summary
"The slogan of Benchmark Media Systems actually sums it all up nicely: “Benchmark ... the measure of excellence!”"
- Geoffrey Vanhouwaert, Alpha-Audio
Note: The quotes above were translated from Dutch. The full review (in Dutch) is available below.
Rear Panel - HPA4 and LA4
Also in Reviews
AHB2 Review - Mike Prager, Future Audiophile
"For years, the audio world acknowledged one main contender (at least at sub-five-figure pricing) for the quietest, cleanest, most neutral power amplifier around. That was the Benchmark AHB2, whose specifications are still, for all practical purposes, unsurpassed, even by today’s excellent Class-D amps."
"10 years after its release, the Benchmark Media Systems AHB2 stereo power amp is still a standard-bearer in clean, neutral sound in the audiophile world."
"I greatly enjoyed having a pair of AHB2s in my system – their purity, neutrality, and seemingly unlimited power provided a clear window on the music and a lot of joy."
"I especially appreciated the AHB2’s smooth, well-integrated treble, free of splashiness or grain, and its natural reproduction of the human voice."
- Mike Prager, Future Audiophile
AHB2 Review - Constantine Soo, Dagogo
"The AHB2 bridgeable stereo amplifier ... was the topic of a recent discussion between American electrostatic panel speaker manufacturer Sound Lab’s president, Dr. Roger West, and me."
"In our discussion, he related his highly positive experience in driving even his largest, $55k Majestic 945 panels with the $7,000 pair of Benchmark Media AHB2 monoblocks, along with the $3,050 LA4 Preamplifier and factory XLR cables."
"Dr. West described the AHB2 as a class AB design using “feed-forward distortion reduction [thus removing] any possibility of pushing the margin of safety of a standard feedback loop, used in most amplifiers, into an unstable oscillatory mode.”"
"He further shared with me that “this is of most concern on powerful musical transients. The distortion of the amplifier in the balanced mode is astonishingly low even at just below the clipping level of 380 watts.”"
"The prospect of the AHB2’s specified distortion level of 0.00015% or lower when at full volume is comical at first glance, but upon actual audition the impact of the achievement is very audible from medium-high listening levels and upward."
"It was unlike any other sub-$20,000 amplifier I have auditioned."
"My audition of the Benchmark Media AHB2 amplifiers underscores the reason Dr. West is so taken by it, and confirms the design is best described as a watershed moment in the high-end audio industry."
- Constantine Soo, Dagogo
DAC3 Review - Jerry Del Colliano
"Benchmark is a stalwart brand in pro audio, but has carved out a very respectable niche in the audiophile world with their diminutive but powerful components."
"The audiophile world sometimes looks to the professional audio world for enlightenment, especially on the digital side of things, and Benchmark Media is one of the companies that we put high on a pedestal."
"They are hardcore digital engineers freezing their asses off in upstate New York as they come up with some pretty innovative ways to get your varied digital sources sounding as much like the master tape as possible. Thank you for your service, gentlemen."
"If you really want to hear what your music sounds like in today’s streaming-driven world, this might just be the DAC that you need to test out."
- Jerry Del Colliano, Future Audiophile