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  • AHB2 Power Amplifier Black

    Power Amplifier

  • HPA4 Headphone Amplifier Silver

    Headphone Amplifier

  • LA4 Line Amplifier Silver

    Line Amplifier

  • Digital to Analog Converters

  • AHB2 Review - Paul Rigby, The Audiophile Man

    Paul Rigby, The Audiophile Man

    Benchmark AHB2 Power Amplifier

    AHB2 - "The Perfect Heart to any Hi-Fi"

    "Starting with Dakota Staton’s album ‘Round Midnight from the original Capitol release, issued in 1960, I connected the Benchmark to my Quad 57 electrostatics."

    "Staton’s vocal delivery was calm, even and smooth without any edginess to her delivery and certainly without any brightness or blooming during crescendos. Her even-handed vocal delivery was very pleasant indeed."

    "As for the instruments backing Staton, I was impressed by the tonal accuracy of the introductory strings and the clarinet. Both, backed by the similarly impressive low noise nature of the soundstage, had room to express themselves that enhanced the richness of their performance."

    "Everything was in order and everything was in its place. Part of the reason for this was the low noise so, right from the off, the music was much more focused than many other components."

    "Bass was never one dimensional but had a layered personality of its own."


    Benchmark AHB2 Power Amplifier
    "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 hifi chain. It’s dependable and rock solid. The perfect heart to any hifi."


    Paul Rigby PFP

    - Paul Rigby, The Audiophile Man -

    Read the full review →


    In his review, Paul Rigby mentions driving Quad ESL-57 electrostatic speakers using the AHB2 in bridged-mono mode. Potentially, this mode will provide too much output to the ESL-57 speaker and this may cause damage. The ESL-57s are rated for a maximum input voltage of 33V. The AHB2 can deliver 40V in stereo mode and 80V in mono mode. Mono mode can severely overdrive the ESL-57 speakers and may cause permanent damage to the electrostatic panels. The AHB2 should be used in stereo mode when driving ESL-57 speakers. Apparently the AHB2 gain switch was configured for a lower gain than Paul's other amplifier. This led him to believe that the AHB2 needed to run in bridged-mono mode when driving his ESL-57 speakers. The correct action would have been to turn up the preamplifier and/or adjust the gain switch on the back of the AHB2.

    - Benchmark

    Also in Reviews

    AHB2 - A-Rated Recommended Power Amplifier - Stereophile

    AHB2 - A-Rated Recommended Power Amplifier - Stereophile

    by Benchmark Media Systems September 15, 2023 1 min read

    Stereophile LogoBenchmark AHB2 Power Amplifier

    AHB2 - Receives Stereophile's Highest "A" Rating for Power Amplifiers

    "Benchmark's AHB2 makes use of THX Corporation's Achromatic Audio Amplifier (AAA) technology, in which a low-power feed-forward amplifier drives a low-bias class-AB output section."

    - Stereophile, 2023

    "Much more apparent low-level detail in already-familiar recordings" - Kalman Rubinson

    "A tonal balance that sounded more 'right' than any of [the other amps on hand]." - Kalman Rubinson

    "An extraordinary amplifier." - John Atkinson

    Read Full Post
    LA4 - Class A Recommended Preamplifier - Stereophile

    LA4 - Class A Recommended Preamplifier - Stereophile

    by Benchmark Media Systems September 15, 2023 1 min read

    Stereophile Logo

    Benchmark LA4 Silver

    LA4 - Receives Stereophile's Highest "Class A" Rating for Preamplifiers

    "Benchmark's usual approach to design is to out-spec the competition, and so it is here. Like other Benchmark equipment he has tested, the affordable LA4 challenged the resolution of John Atkinson's test instruments, with 'superb' channel separation, 'extremely low noise, and virtually no power-supply-related spuriae.'"

    "Benchmark's LA4 is the widest-bandwidth, widest-dynamic-range, lowest-noise, lowest-distortion preamplifier I have encountered." - John Atkinson

    "In his listening room, Kalman Rubinson compared the LA4 to a cable—and couldn't hear any difference. He concludes, 'the LA4 is probably the most transparent and revealing audio component I've ever used. It does not seem to leave any fingerprints on the sound.'"

    - Stereophile, 2023

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    Stereophile 2023 Recommended Component Badge

    DAC3 - Class A+ Recommended Processor - Stereophile

    by Benchmark Media Systems September 15, 2023 1 min read

    Stereophile Logo

    Benchmark DAC3

    DAC3 HGC, DAC3 B - Receive Stereophile's Highest "Class A+" Rating

    "The DAC3 B is a stripped- down, lower-priced version of the DAC3 HGC, which omits the headphone amplifier, balanced and unbalanced analog inputs, volume, mute, and polarity controls." - Stereophile

    "The DAC3 was all about depths, in several respects...I heard deeper into the music."

    "All I can say is Wow!"

    - John Atkinson

    "In a Follow-Up, JCA wrote of using the Benchmark processor with the same company's AHB2 power amp—a combination of high source output voltage and modest amplifier gain that he describes as 'optimal for minimizing noise and distortion' —and reported hearing 'richer and more interesting' reproduction of very subtle details."

    - Stereophile

    Read Full Post