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 ...
Audio Application Notes
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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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Audio Myth - Balanced Headphone Amplifiers are Better
Benchmark does not offer balanced headphone outputs on any of its products. The reason for this is that a voltage-balanced interface serves no usef...
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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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Will the HPA2 Drive My Headphones?
Benchmark DAC1, DAC2 and DAC3 converters are equipped with Benchmark’s HPA2 headphone power amplifier. It is capable of driving a wide variety of h...
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The HPA2™ Headphone Power Amplifier
Many Benchmark products include our HPA2™ headphone amplifier. Unlike most headphone amplifiers, the HPA2™ is actually a small power amplifier. Why...
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Don't Blame the Headphones!
Headphones Sounding Bad? It Could be Your Headphone Amplifier! It is easy to build a headphone amplifier that produces sound. It is an entirely di...
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Headphone Impedance and Sensitivity
Is headphone impedance important? What is headphone sensitivity? Which headphones will work best with my new headphone amplifier? Which hea...
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Headphone Amplifiers - Part 2
It's all about control! - Headphone Output Impedance The movement of headphone transducers must be well controlled in order to produce high-quality...
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Headphone Amplifiers - Part 1
Headphones do not Behave Like a Resistor - Beware of Misleading Specifications! A couple years ago, some of us at Benchmark noticed a weird discre...
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An Examination of Headphone Amplifier Performance Specifications
Headphone Amplifier Whitepaper Recording Engineers and Audiophiles often distrust audio measurements and specifications. It is not uncommon to he...
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The "0-Ohm" Headphone Amplifier
An Introduction to "The 0-Ohm Headphone Amplifier" White Paper The circuits used to drive headphones are often added to a product without careful c...
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