Rules of Thumb for Music and Audio
As an engineer I like to use "rules of thumb" to make quick estimates that help to explain the physical world around me. These rules of thumb are e...
Audio Application Notes
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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
If you look at the back of any Benchmark product, you will find balanced XLR analog-audio connectors. As a convenience, we also provide unbalanced ...
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Relay-Controlled Volume - The Ultimate Solution for Analog Audio
Benchmark has introduced a new analog-to-analog volume control circuit that features a 256-step relay-controlled attenuator and a 16-step relay-con...
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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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Inside the DAC2 - Part 3 - Power Supplies
The Benchmark DAC2 is an audio digital-to-analog converter. This application note explains the power supply configuration inside Benchmark's DAC2 D...
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Inside the DAC2 - Part 1 - Analog Processing
The DAC2 is an audio digital-to-analog converter. Most people focus on the word "digital" and assume that all of the "magic" happens in the digital...
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Grounding XLR Connectors - Neutrik USA
"Neutrik is often asked whether the shiny silver tab (pictured below) on typical XLR cable connectors (Neutrik XX series, RX series, X series, etc....
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AHB2 Crossover Distortion Measurements
Crossover Distortion - Measurements The following measurements and scope photos demonstrate the effectiveness of the feedforward system in the AHB2...
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Amplifier Crossover Distortion
Crossover Distortion - Introduction Most audio power amplifiers suffer from a defect known as "crossover distortion". This distortion is particula...
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How Should I Buy an Audio System?
Two Distinct Types of Audio Products - Understand the Difference Before You Buy! Make your own choice! "Buying an audio product is much like buy...
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Star Quad Cable Demonstration - Video
Benchmark has recorded a lab demonstration that shows what happens when a standard two-wire cable is exposed to common sources of magnetic interfer...
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The Importance of Star-Quad Microphone Cable
Eliminate Magnetic Interference with Star-Quad Cable Studios, live sound venues and homes all have magnetic fields that can cause interference. Ma...
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Will the HPA2 Drive My Headphones?
Benchmark DAC1 and DAC2 converters are equipped with Benchmark’s HPA2™ headphone power amplifier. This is a high-current design with very low outpu...
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The HPA2™ Headphone Power Amplifier
Why do I need a Power Amplifier to Drive My Headphones? Many Benchmark products include our HPA2™ headphone power amplifier. Unlike most headphone ...
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The Audio Path in Consumer-Grade Audio Products
Explore the Differences Between Consumer and Professional Audio Products Consumer products are usually packed with features but they often fall sho...
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The AHB2 - A Radical Approach to Audio Power Amplification
Radical! The performance of the AHB2 would not have been achievable without taking a radical approach to power amplification. In many ways, the A...
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