John Siau on DACs and Measurements - SoundStage! Network - Podcast
In this interview, John Siau shares a few thoughts about his career history, the secrets sauce in Benchmark converters, and the importance of meas...
Audio Application Notes
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How Loud is the Distortion from Your Power Amplifier?
Would you put a washing machine in your listening room? If the answer is no, you may be surprised to discover that the distortion produced by your ...
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REL Subwoofers with AHB2 Power Amplifier
Many Benchmark customers are using their AHB2 power amplifiers with REL subwoofers. This application note shows how to connect one or two AHB2 ampl...
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Audio Myth - "Damping Factor Isn't Much of a Factor"
Myth - "Damping factor isn't important" Myth - "A damping factor of 10 is high enough" Myth - "All amplifiers have a high-enough damping factor" Wh...
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Feed-Forward Error Correction
The Benchmark AHB2 power amplifier and HPA4 headphone amplifier both feature feed-forward error correction. This correction system is an important ...
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Balanced vs. Unbalanced Analog Interfaces
For analog audio, balanced XLR interfaces are vastly superior to unbalanced RCA interfaces. If you look at the back of any Benchmark product, you w...
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Relay-Controlled Volume - The Ultimate Solution for Analog Audio
Benchmark has introduced a new analog volume control circuit that features a 256-step relay-controlled attenuator and a 16-step relay-controlled bo...
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Laboratory Use of the Benchmark AHB2 Power Amplifier
SEAS, a well-known manufacturer of high-quality loudspeakers, selected the Benchmark AHB2 as a key component for use in testing loudspeakers. They ...
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Interpreting THD Measurements - Think dB not Percent!
Distortion measurements (THD, THD+N and IMD) are traditionally expressed in terms of percent. But what do 1%, 0.1%, 0.01% or 0.001% mean in terms o...
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Calculating the Performance of an Amplifier-Speaker Combination - Example 2
This application note can serve as an example for calculating the maximum sound pressure levels and noise output levels for any amplifier/speaker c...
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AHB2 Tri-Amp Setup - Ellery Coffman
The following photos and system descriptions were provided to us by one of our customers, Ellery Coffman. He has put together an amazing system and...
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Speaker Sensitivity and Amplifier Power
Speaker sensitivity is a measure of how loud a speaker will play at a given input power or at a given input voltage. Sensitivity is normally measur...
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Calculating the Performance of an Amplifier-Speaker Combination
In this application note we calculate the maximum output level and noise level produced by an amplifier/loudspeaker combination. Use this example f...
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Power Amplifiers - A "First Watt" ABX Test
In Benchmark's listening room we recently ran a double-blind test comparing two 100-watt stereo power amplifiers. One amplifier was a traditional c...
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Audio Myth - "Switching Power Supplies are Noisy"
In audio systems, switching power supplies can be much quieter than linear power supplies. The secret to this difference is hidden in the magnetic ...
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Benchmark Bi-Directional 12 Volt Trigger - Technical Details
Link your audio products together with trigger cables Benchmark has created a bi-directional 12 Volt trigger interface that is compatible with al...
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History of the AHB2 Power Amplifier
For many years, we used our distribution amplifiers to drive the speakers in our listening room. We couldn't buy an amplifier that came close to th...
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The A.H.B. Story
The AHB2 power amplifier is named in honor of Benchmark's founder, Allen H. Burdick. Allen had a life-long passion for audio, and became one of the...
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