Reviews

AHB2 - California Audio Show 2019 -

AHB2 - California Audio Show 2019 - "Room of Distinction" - The Audio Beatnik

by Benchmark Media Systems August 04, 2019

"I ended up visiting this room more than any other room at the show. I couldn’t help myself; I had to keep coming back for more!"

- Drew Gagliano, TheAudioBeatnik.com

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HPA4 Review - Dan-Alexandru Gheorghe, HeadMania

HPA4 Review - Dan-Alexandru Gheorghe, HeadMania

by Benchmark Media Systems July 07, 2019

"It’s ... been a while since I have been this excited about an audio product."

"Audeze LCD-2C, Quad Era-1, Brainwavz Alara, Sennheiser HD650 ..."

"It’s the first time when I have heard the headphones mentioned above to their full potential. In the first minute my jaw dropped ..."

"From my perspective this is the best headphone amplifier I have ever heard. It’s no competition really."

"It’s not cheap, I can give you that. Is it worth it? That is up to each and every one of you, but if you really want the best amplifier out there, an end game amplifier…this is it."

- Dan-Alexandru Gheorghe, HeadMania.org

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HPA4 Review - Steven Stone, Home Theater Review

HPA4 Review - Steven Stone, Home Theater Review

by Benchmark Media Systems June 26, 2019

"The HPA4 combined with the Benchmark AHB2 power amplifier ranks as the quietest rig I've heard (or not heard). Even with the gain up to full with no signal, there is no hiss, hum, or buzz, even when I placed my ears within a in inch of the drivers on 89 dB sensitive loudspeakers."

"As a headphone amplifier, the HPA4 was first rate. Whether it was my most power-hungry headphones, which currently are the new Abyss Diana Phi, or my most sensitive IERs, such as the Empire Ears Phantoms, there was no added noise or lack of adequate gain."

"The Benchmark HPA4 exhibits virtually no noise, whether employed as a stereo preamp or headphone amplifier, and his highly transparent, with no audible colorations."

"If you are looking for a preamplifier/headphone amplifier that you can live with happily for a long time, you should consider the Benchmark HPA4 at the top of your must-audition list."

- Steven Stone, HomeTheaterReview.com

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HPA4 Review - Sandu Vitalie, Sound News

HPA4 Review - Sandu Vitalie, Sound News

by Benchmark Media Systems June 23, 2019

"Today, is a very special day for me, since I believe I am hearing the best overall performance out of my headphones."

"The distance performance-wise between HPA4 and my second-best headphone amp is Night and Day!"

"This headphone amplifier and line pre-amplifier receives my highest recommendation and scores the highest rank in my book."

"It spoiled me so much, that for the past 3 days I’m waking up at 5 A.M. so I can listen, tap my feet and head-bang just a little bit more. I for one, started saving for one, I’m sorry but I can’t go back to regular amps."

"Without a doubt Benchmark HPA4 is an end-game, top of the line headphone amp – it’s The One to rule them All."

 - Sandu Vitalie, SoundNews.net

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AHB2 - Lab Report - Amirm,  Audio Science Review

AHB2 - Lab Report - Amirm, Audio Science Review

by Benchmark Media Systems May 30, 2019

"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

Frequency Response:

  • -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

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AHB2 and HPA4 Review - Ulrike Schwarz, Anderson Audio NY

AHB2 and HPA4 Review - Ulrike Schwarz, Anderson Audio NY

by Benchmark Media Systems May 29, 2019

"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

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AHB2 & Marting Logan ESL 11A - Axpona 2019 - The Audio Beatnik

AHB2 & Marting Logan ESL 11A - Axpona 2019 - The Audio Beatnik

by Benchmark Media Systems May 29, 2019

197 Rooms - Benchmark Room Makes a "Top 3" List

"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

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HPA4 - Review - Tom Martin, The Absolute Sound

HPA4 - Review - Tom Martin, The Absolute Sound

by Benchmark Media Systems May 20, 2019

"I thought the HPA4 sounded as good as any headphone amp I’ve heard for dynamic headphones, and it might be the best of the lot ..."

"The HPA4 is exceptionally good at presenting a layered, dynamic, yet relaxed sound. You can hear these rich results on, for example, Eliza Gilkyson’s Hard Times in Babylon (Red House), where the instruments not only are clearly differentiated but also sound fully rendered, as live instruments do. You also can hear the overtones of each instrument as they decay, which makes them sound more real."

"... wish the review sample didn’t have to go back."

- Tom Martin, The Absolute Sound

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LA4 Review - Gary L Beard, Positive Feedback

LA4 Review - Gary L Beard, Positive Feedback

by Benchmark Media Systems April 09, 2019

"My initial impression was simple: The LA4 preamp plays everything that is, and nothing that isn't...Neutrality in Audio... and that's really all this review needs to convey."

"The LA4 preamp may occupy neutral audio country, but it is a sweet piece of audio kit. I love its form-factor. I love its simple operation. And I love that it allows the sound of the signal to flow through to the downstream components."

"The LA4's specifications are unquestionably excellent. When using pro-level balanced interconnects, the LA4 manages a Signal to Noise Ratio (SNR) greater than 135 dB, and Total Harmonic Distortion (THD) of -125 dB."

"The LA4 has a noise floor that is not just low, it's bats-strain-to-hear-it low."

"The Benchmark LA4 is an excellent preamp, an operationally solid spec-monster that also happens to sound great."

- Gary L Beard, Positive Feedback

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HPA4 -

HPA4 - "Best Headphone Amplifier" - AV Tech Media Awards 2018/2019

by Benchmark Media Systems January 22, 2019

"The headphone section, with its choice of 6.35 mm stereo or four-pin balanced XLR connectors ... really impresses with a smooth signal delivery."

"While on the one hand it can rock out when it needs to – its prodigious output means it can give as much power as your headphones can take – its sheer impact, openness and vivacity is jaw-dropping."

"An immaculate all-analogue design, the aptly named Benchmark is both technically and sonically as good as it gets."

- AV Tech Media Awards 2018/2019

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Stereophile 2018 Product of the Year - Editors' Choice Awards

Stereophile 2018 Product of the Year - Editors' Choice Awards

by Benchmark Media Systems January 03, 2019

Stereophile's editors chose 10 products to receive their top award, the "2018 Product of the Year - Editor's Choice Award". Two Benchmark products made this exclusive list - the AHB2 power amplifier and the DAC3 HGC D/A converter.

AHB2 - 2018 Editors' Choice Award 

"I was impressed by this revolutionary stereo amplifier but it became an obsession when I mated three as monoblocks to a trio of Benchmark's DAC3s."

"The AHB2 is deadly silent, musically revealing, surprisingly compact, and quite powerful."

- Kalman Rubinson

DAC3 HGC - 2018 Editors' Choice Award

"Benchmark has created a long line of DACs (several of which I've purchased) that present recordings with as little embellishment as is possible at their price points. The latest incarnation, the DAC3, is no exception, and excels at presenting the unvarnished truth, as the artist intended."

- Jon Iverson

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AHB2 -

AHB2 - "2018 Amplification Component of the Year - Finalist" - Stereophile

by Benchmark Media Systems January 03, 2019

Third place, just two points out of first place

The competition in the amplification category was very tight. There was a two-way tie for first place between two amplifiers that cost $30,000 a pair and $13,500 a pair. 

The Benchmark AHB2 was just two points behind the leaders when the Stereophile reviewers cast their final votes. In all, there were 13 amplifiers that made Stereophile's select list of finalists. The Benchmark AHB2 was the least expensive amplifier on the list, yet it received top scores from the reviewers. The list included amplifiers with stratospheric prices. Six amplifiers were priced between $25,000 and $118,000 a pair!

At Benchmark we believe that a great audio system shouldn't set you back by the cost of a sports car.

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HPA4 -

HPA4 - "2018 Product of the Year" - Everything Audio Network

by Benchmark Media Systems January 03, 2019

HPA4 - Top Product of 2018, All Categories

For 2018, Everything Audio Network has selected just one product for the honor of "Product of the Year". That product is the Benchmark HPA4 headphone/line amplifier.

"One of the most transparent audio products I have ever heard at any price"

"Marvelously open and clean"

- John Gatski, Everything Audio Network

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DAC3 HGC -

DAC3 HGC - "2018 Digital Component of the Year" - Stereophile

by Benchmark Media Systems November 21, 2018

Tie for First Place, 16x Price Difference

"This contest produced another tie, and yet another contrast between two wildly different philosophies—economical, if not technical. As Jim Austin pointed out in his initial review, the DAC3 HGC D/A processor from Benchmark Media Systems—a company known for making pro-audio as well as domestic-audio gear—sells for less than the price of certain high-end interconnects. The dCS Vivaldi D/A processor sells for 16 times the Benchmark's price, and in our pages was first reviewed, by Michael Fremer, as part of a $114,996 dCS digital front end."

"Both DACs impressed their respective reviewers with magnificent sound—and in his measurements for both, John Atkinson offered the same one-word conclusion: "Wow!""

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DAC3 & AHB2 in 5.1 Surround - Kalman Rubinson, Sterophile

DAC3 & AHB2 in 5.1 Surround - Kalman Rubinson, Sterophile

by Benchmark Media Systems November 02, 2018

"In my September 2018 column, I wrote of my discovery of miniDSP's U-DIO8, which converts multichannel data fed to its USB port to eight S/PDIF or AES-EBU outputs at resolutions of up to 24-bit/192kHz. Armed with a U-DIO8, you can use three or four of your choice of stereo DAC."

"I went commando with the DAC3s directly connected to the three AHB2s. All three DAC3s were set to Home Theater Bypass, and I used JRiver Media Center's volume control."

"For the first time I can recall, I heard no noise from my system, even with an ear flush against a tweeter."

"I know that we audiophiles can obsess about small changes and make them seem more important than they actually are, but that's what this hobby is about: Eliminating as many audible flaws as possible, however tiny. In this case, the effect was striking at first listen, and endured through everything I played, even tracks that had troubled me before."

- Kal Rubinson, Stereophile

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LA4 -

LA4 - "Best of RMAF 2018" - SoundStage! Hi-Fi

by Benchmark Media Systems November 01, 2018

"RMAF 2018 was really good, with significant numbers of attendees, and more new-product introductions than I remembered ever seeing there."

"Led by engineer John Siau and based in Syracuse, New York, Benchmark Media Systems has built a sterling reputation for making compact, well-engineered, moderately priced electronics that challenge the state of the art, both on the test bench and in the listening room."

"What I took notice of were the specifications: total harmonic distortion of less than 0.00006%, and a signal/noise ratio exceeding 135dB from 20Hz to 20kHz."

"If those claims are true, and there’s no reason to believe they aren’t -- Benchmark gear has always performed as specified on the test bench -- the LA4 should be about as transparent-sounding a line-stage as you can find at any price." 

- Doug Schneider, SoundStage! Hi-Fi

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DAC3 B & HPA4 - RMAF 2018 Show Report - EnjoytheMusic.com

DAC3 B & HPA4 - RMAF 2018 Show Report - EnjoytheMusic.com

by Benchmark Media Systems October 15, 2018

"Speaking of reference gear, few names in high-end audio are so closely attached to the reference sound as Benchmark. Their fantastic HPA4 reference amplifier could be found at booths throughout the show. This year, Benchmark was introducing its new DAC3 B."

"I spent some time playing around with the Benchmark pieces, and they really have a high quality pro-audio-like build to them. They're the polar opposite of some of these more DIY-feeling boutique amps and DACs out there – Benchmark has a very professional level of finish on it."

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HPA4 Review - Andrew Everard, Hi-Fi News

HPA4 Review - Andrew Everard, Hi-Fi News

by Benchmark Media Systems October 09, 2018

Hi-Fi News "Outstanding Product" Award

"Benchmark describes its product as a 'reference Stereo Headphone Amplifier and Reference Line Amplifier with Relay Gain and Input Control', which should give you some idea of what's going on here, but only hints at the fact that this is actually two completely separate products packed into one relatively compact unit."

"The headphone section is powered by a power amp from THX, employing the same AAA (Achromatic Audio Amplifier) technology first used by the company in its AHB2."

"Benchmark's line amplifier uses relays for input selection, gain control and muting while four independent 256-step attenuators ... feed the the headphone ... and preamp outputs."

"As PM notes in his Lab Report, this design gives the HPA4 not only outstanding performance, but also rather impressive - to say the least - signal delivery."

"All of a track or two should do the trick, as whether with revealing headphones ... or used as a preamp, the HPA4 simply drops jaws with the sheer impact, openness and vivacity of the way it plays music."

"It was one of those real 'performer in the room' experiences and I was instantly transported back to the time I spent monitoring the recording as it was being made ..."

 - Andrew Everard, Hi-Fi News, November 2018

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HPA4 - Lab Report - Paul Miller, Hi-Fi News

HPA4 - Lab Report - Paul Miller, Hi-Fi News

by Benchmark Media Systems October 09, 2018

"Here's a brand that's aptly named - its products providing a 'benchmark' technical performance. The HPA4 is no exception with its relay-switched stepwise volume attenuator calibrated in 0.5 dB steps over a 'useable' 105 dB range."

"Distortion and noise are vanishingly low."

"The frequency response is ruler flat (+/- 0.01 dB) from 1 Hz - 100 kHz."

"The [line output] source impedance is a sensible 30 Ohms and the maximum output a huge 22 V."

"Via the headphone amp, the maximum voltage is 11.2 V and ... the maximum power output is a substantial 4.4W/25ohm and 7.7W/8ohm."

"So, not only will the HPA4 drive the toughest headphone loads but its ... insignificant -102 dBV (8uV) residual noise also ensures exceptionally quiet backgrounds when listening with the most sensitive headphones/earbuds."

"Distortion is broadly unaffected by loading."

"The source impedance is a low <0.6 Ohms up to 10 kHz, increasing to 0.78 Ohms at 20 kHz."

- Paul Miller, Hi-Fi News
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DAC3 B & LA4 - RMAF 2018 Show Report, SoundStage!

DAC3 B & LA4 - RMAF 2018 Show Report, SoundStage!

by Benchmark Media Systems October 06, 2018

"Benchmark Media Systems used RMAF 2018 to launch two new products that it was able to lump together into one neat little stack."

"On the top is the DAC3 B, which has the same basic circuitry as the company’s more expensive DACs, but deletes the volume control, polarity and mute buttons, and headphone amp found on those models."

"On the bottom is the LA4 linestage preamplifier..." 

"The LA4 has two pairs each of single-ended (RCA) and balanced (XLR) inputs, and boasts some impressive specs: THD of less than 0.00006% and a signal-to-noise ratio exceeding 135 dB from 20 Hz to 20 kHz."

"Volume is controlled by dual 256-step attenuators that operate in 0.5 dB increments."

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