Measurements
-
Balanced vs Single-Ended Headphone Amp: Specs Compared
The spec-based guide compares balanced and single-ended headphone amp outputs by power, noise, impedance, connectors, and when extra headroom matters.
-
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 noise, cost, features and upgrade paths.
-
Headphone Amp Noise: Fix Hiss, Ground Loop Hum, USB Whine
Tell hiss from hum, then isolate the stage at fault: lower gain for hiss, break ground loops for hum, and fix USB whine with ports, drivers and power.
-
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.