headphone-amps
Tube vs Solid State Headphone Amp: Which Fits?
Tube or transistor is not the key spec. Compare output impedance, load-tested power, gain, noise, distortion,…
DAC & Amp Guide — Desktop DACs and Headphone Amps: Impedance, Sensitivity and Output Power
Desktop DACs and Headphone Amps: Impedance, Sensitivity and Output Power
DAC & Amp Guide
Independent · 2026
Independent · 2026
fundamentals
Headphone Impedance Explained: Ohms, Voltage and Amps
Headphone impedance in ohms sets how much voltage your source must swing, not sound quality. The numbers, the 1/8 rule and when you need an amp.
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buying-guides
Balanced vs Single-Ended Headphone Amp: Specs Compared
The spec-based guide compares balanced and single-ended headphone amp outputs by power, noise, impedance, con…
fundamentals
What Is a DAC in Audio? How It Works and What Matters
A DAC converts digital audio samples into analog voltage. This guide covers sigma-delta conversion, key specs…
buying-guides
Combo DAC/Amp vs Separates: Which to Buy
One box or two? A specification-led comparison of combined DAC/amp units against separate stacks, covering no…
buying-guides
Do You Need a DAC and Amp? Or Just One
Your computer already contains a converter and an amplifier. Here is how to tell whether a separate one fixes…
troubleshooting
How to Fix Headphone Amp Hiss, Hum, and Buzz
Diagnose headphone amp hiss, hum, buzz, and USB noise with a step-by-step checklist covering gain, ground loo…