Audio engineering guides
Long-form explainers and practical buyer guides — the “why” behind the parameter database.
How to choose a headphone amplifier
Match amplifier output power, output impedance and topology to your headphones — a practical framework for picking a headphone amp.
4.4mm vs 2.5mm balanced — which to pick
Both 4.4mm Pentaconn and 2.5mm TRRS carry a balanced headphone signal — but they differ in pole count, mechanical robustness and standardization.
IEM driver types explained: DD, BA, hybrid, planar, electrostatic
Dynamic, balanced armature, hybrid, planar magnetic and electrostatic IEM drivers — what each topology does well and where it falls short.
Understanding cable conductor materials: OFC, OCC, monocrystal silver, litz
OFC vs OCC copper, single-crystal silver, silver-plated copper, litz braid — what each conductor and construction actually does for audio.
PCM vs DSD vs MQA — what your DAC actually does
The three digital audio encoding families used in hi-fi today: linear PCM, single-bit DSD, and Master Quality Authenticated.
Measuring headphone impedance and sensitivity
How to read headphone impedance and sensitivity from a spec sheet, why both numbers matter, and how to translate them into a real amp-power requirement.
Best balanced cables for IEMs — buyer guide
How to pick a balanced upgrade cable for IEMs: connector pole count, conductor material, plug compatibility and what to actually look for.
DAC chip families: ESS, AKM, Cirrus Logic, Burr-Brown
The four DAC silicon families that dominate modern hi-fi — their architectures, sonic signatures and typical implementations.
What is MQA, technically
MQA explained — what the "origami unfolding" actually does, what is lossless and what isn't, and what your DAC needs to play it back fully.