HPA4 and LA4 Teardown
John Siau tears down a Benchmark HPA4 Headphone Amplifier and LA4 Line Amplifier to show us what is inside. Fully-balanced 256-step relay-controlle...
Video Tutorials
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AHB2 Teardown
John Siau tears down a Benchmark AHB2 power amplifier to show us what is inside. Discover why the AHB2 is radically different from other power ampl...
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John Siau on DACs and Measurements - SoundStage! Network - Podcast
Host Jorden Guth and producer Dennis Burger are joined by John Siau as he shares a few thoughts about his career history, the secrets sauce in Benc...
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Digital Audio Tutorial - Monty Montgomery
Monty Montgomery takes us into the lab and uses a series of simple demonstrations to bust some very common myths about digital audio. Test your kno...
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John Siau Interview at CAF2025 - Carlo Lo Raso, SECRETS of Home Theater and High Fidelity
I sat down with John Siau while at Capital Audiofest 2025. John talks to me about what makes the current crop of Benchmark DACs a little extra spec...
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DAC Filters - Live Bench Demonstration
In this video, John Siau passes analog waveforms through pairs of A/D and D/A converters in a live bench demonstration to see which ones preserve t...
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How Much Power Do I Need? - Erin's Audio Corner
In this tutorial, Erin shows how to calculate the maximum sound pressure level (SPL) of your music system. He mentions Benchmark's calculators in t...
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How Loud is the Distortion from Your Power Amplifier?
In this video, John Siau extracts the data from the published test results of 7 top-rated audiophile power amplifiers. Hidden within the THD+N vs. ...
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Feed-Forward Correction Explained!
Benchmark's AHB2 power amplifier has a unique feedforward error correction system that cancels distortion before it reaches the speaker terminals. ...
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What is the Purpose of an FFT in Audio Measurements?
An FFT analyzer is like an audio microscope. It allows us to easily measure the frequency and amplitude of tones that are below the level of the no...
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Don't Become a Victim of Audiophile "Wire Fraud"!
Beware of claims that sound too good to be true. Beware of pseudo-scientific language. Beware of any company, reviewer, or salesperson that describ...
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Setting Proper System Gain for Optimized Audio Performance
Are You Driving Your Audio System in the "Wrong Gear"? A race car produces peak power when the transmission is in the proper gear. Likewise, an aud...
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Intersample Clipping - A Problem with Most Digital Playback Systems?
Oversampled sigma-delta D/A converters and fixed-point sample rate converters can add significant amounts of distortion when playing CD-format reco...
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Benchmark Discusses What Makes a Good Preamp
Our goal was to produce an analog volume control with the highest achievable transparency. We wanted to be able to place this volume control in fro...
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Benchmark AHB2: A Radically Different Power Amplifier
Benchmark's AHB2 is radically different from every other audio power amplifier on the market. It delivers the lowest distortion and lowest noise of...
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Benchmark Media Virtual Press Event
John Siau, VP and Director of Engineering, gives us an overview of his company, their design philosophy, and the pioneering products Benchmark offe...
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Connecting an AHB2 to REL Subwoofers
REL makes a series of subwoofers that use speaker-level inputs on SpeakON connectors. This video shows how these should be connected to an AHB2 pow...
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Benchmark Product Line - Video Tutorial
Benchmark manufactures DACs, preamplifiers and power amplifiers. This video explains the various models and recommends several different system con...
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