"The 10th annual AXPONA was the largest yet with an expansive array of speakers, amplifiers and turntables on display across a staggering 197 listening rooms."
"Certain rooms featured systems most enthusiasts could probably afford at some point in their lives, and other rooms catered to the small well-heeled handful who are willing to spend extravagantly to obtain the best possible sound. That’s why I divided my top rooms into two categories: the best three “reality” rooms where the systems were more reasonably priced and the best three “dream” rooms where cost was no object."
"Benchmark teamed up with Martin Logan to drive a pair of their Impression ESL 11A electrostatic speakers with their AHB2 power amplifiers in a bridged-monoblock configuration. The source was an Aurender A10 streamer fed through their own DAC3 B and an LA4 preamp."
"The overall sonic signature of this room had a remarkable sense of ease and purity. Minute details such as a breathy initial saxophone note or a solo vocalist parting her lips and taking a breath before singing were easily discernible. At the same time, they presented all of the musical energy and rhythm contained within the source material."
"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
"Since the HPA4 arrived, I have rediscovered so many of my favorite works all over again with improved detail retrieval dynamics and transparency that it’s hard to pull myself away!"
"It drove my power hungry Abyss Phi TC headphones with complete authority, but it was still dead silent and nimble enough to amplify my easy to drive Focal Utopia headphones."
"Rarely have I come across such a wonderfully revealing amplifier that can drive many different types of headphones so darn well! The solid build construction and various controls make the $2,995 price tag seem a bit low based on the other headphone amplifiers in this market space."- Peter Pialis, Headphone.guru
"Benchmark Media Systems’ LA4 preamplifier presented an utterly realistic reproduction of what was contained on each recording I played through it -- and weak recordings stood out more than usual. The LA4’s clean, analytical abilities are unmatched by any similarly priced preamplifier I know of. The LA4’s touchscreen brings it up to date with current user interfaces, and permits functions, such as balance control and muting at the device."
"If you want a preamp that editorializes, look elsewhere."
"If, like me, you value a high-resolution, totally neutral musical performance, add a Benchmark LA4 to your system, particularly if you already own a Benchmark DAC."
- Erich Wetzel, SoundStage! Hi-Fi
"You’ll have a tough time finding a cleaner, quieter, more transparent line amplifier and headphone amplifier anywhere, at any price. I found it to be a new reference. Once I heard it, I could not live without it, so I purchased the review sample. The HPA4 deserves my highest recommendation."
"The HPA4 is the latest product from Benchmark Media Systems, an upstate New York audio manufacturer. Benchmark calls it a headphone amplifier, but it’s really two products in one, combining the LA4 Line Amplifier introduced in 2018, with a headphone amplifier. It is also based on the same THX Achromatic Audio Amplifier technology used in Benchmark’s acclaimed AHB2 power amplifier."
- Gary Galo, Audioxpress.com