Both for those just stepping into this audio stuff, and for experienced audiophiles.


Sweet spot of amplifier power

According to the common wisdom, relation between amplifiers’ power and their supposed sound quality may look like relation of equivalence. “The more the better.” The truth is, the best sound quality is associated to certain working conditions, which also implies certain power. Insisting on (often redundant) more power, actually can and does compromise sonic properties.


Designing the ultimate monolithic amplifier

A sum up of more than decade of designing and living with chip based power amplifiers.


Sound of harmonic distortion

It looks like there is no consensus on its audibility, so here are several examples of distorted sinewave, to help your own understanding.


PSU transformers: EI vs. toroidal, and more

Actual sonic report, and actual measurements.


Data and signal: are we progressing?

Are bits still just bits? Let’s take a look from today’s point of view.


TDA1541A and Model S USB: 192 kHz?

Simultaneous data mode

TDA1541A today

TDA1541A grades and series

Another story about TDA1541A: 384 kHz

A series of four articles discussing TDA1541(A) through its relation to Model S USB, written in 2010, and summing up TDA1541A phenomenon. The fifth article was posted in September 2017, to shed another light on its sampling frequency bandwidth.


High resolution audio, asynchronous USB, oversampling, upsampling and stuff: The current state of affairs

Do the PC and USB really fit into high quality audio today? This article is a reference point on these and similar topics. Written in 2010, it only got more important over time, showing Audial’s leading position. Must read for every ambitious audiophile.



The article discussing major differences between two principles. It is written in the days before asynchronous USB audio, but it remains the one that points out main issues that should be addressed, not only in S/PDIF and USB, but also generally in the digital audio.


Bypassing Windows audio mixer

How to bypass Windows audio mixer, and achieve bit-perfect output. Preserve the data integrity for high quality PC playback experience, in a few simple steps.