#headphone-amp
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Combo DAC/Amp vs Separates: How to Choose
One box or two? A specification-led comparison of combined DAC/amp units against separate stacks, covering noise, cost, features and upgrade paths.
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Do You Need a DAC and Amp? A Buyer's Guide
Your computer already contains a converter and an amplifier. Here is how to tell whether a separate one fixes a real problem or changes nothing.
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Headphone Amp Hiss and Hum: Causes and Fixes
A diagnostic order for desktop audio noise: separate hiss from hum, isolate the stage that produces it, then apply the fix that matches the cause.
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Matching a DAC and Headphone Amp to Your Headphones
How impedance, sensitivity, output power, output impedance and SINAD figures combine to decide whether an amplifier suits the headphones you own.