• Feed-Forward Error Correction

    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 ...

    John Siau
    Updated on
  • DAC2 Internal View

    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...

    John Siau
    Updated on
  • Will the HPA2 Drive My Headphones?

    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...

    John Siau
    Updated on
  • Benchmark DAC with dual HPA2 Headphone Outputs

    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 ...

    John Siau
    Updated on
  • Don't Blame the Headphones!

    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...

    John Siau
    Updated on
  • Headphone Impedance and Sensitivity

    Headphone Impedance and Sensitivity

    Is headphone impedance important?  What is headphone sensitivity? Which headphones will work best with my new headphone amplifier?  Which hea...

    John Siau
    Updated on
  • Headphone Amplifiers - Part 2

    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...

    John Siau
    Updated on
  • Headphone Amplifiers - Part 1

    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...

    John Siau
    Updated on
  • The "0-Ohm" Headphone Amplifier

    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...

    John Siau
    Updated on
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