AHB2 -Laurie Fincham describes the 9-year development of the revolutionary THX AAA technology
In a recent interview by The Poor Audiophile, Laurie Fincham, Vice President of Audio Research at THX, describes the 9-year process that led to the introduction of the revolutionary THX Achromatic Audio Amplifier technology used in the Benchmark AHB2.
"The first thing you need to know about Laurie is that he’s an audiophile’s audiophile. He’s an engineer, music lover, and also a musician..."
"Talking with Laurie was a bit intimidating. For those unfamiliar with Laurie’s distinguished background ...Laurie’s work has garnered him several industry awards including the prestigious AES (Audio Engineering Society) Silver Award..."
"Laurie and I spoke a bit about existing amplifier topologies. “The Class A analog amplifier is a luxury,” he said. “Big, expensive, beautiful, but hot.” We talked about other topologies including recent moves to make audiophile Class D amplifiers. “Most people think Class D is a recent innovation,” Laurie said. “Class D is, in fact, as old as solid state and goes back to the late 50s or 60s.”"
"Instead of building upon existing technologies, Laurie and his team decided to design a better amplifier technology from the ground up. Laurie was quick to point out, “We didn’t invent or reinvent the amplifier. Instead, we looked at the shortcomings, the physics, and developed a technology to deal with that. We were motivated to do better. We didn’t stop.”"
“We’ve been working on the amplifier since 2006 ...
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.'"
"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."