Tech talk

Roland Hoffmann explains analogue versus digital amplification — why nearly all music is already digital before it reaches an amp.

Roland Hoffmann explains harmonic frequencies — the overtones that give a piano, a violin or a voice its unique character.

Roland Hoffmann shares practical speaker placement rules — from the stereo triangle to why a subwoofer often belongs in a...

Dietrich Brakemeier explains the A*Stellar turntable, distilling 33 years of Apolyt development into a smaller, more affordable design.

Bruno Putzeys on how Purifi speaker drivers eliminate motor distortion — and why the real breakthrough was in the rubber...

Bruno Putzeys explains the Eigentakt amplifier, the mathematics behind its high loop gain, and what causes Class D's 'veiled' sound.

Bruno Putzeys traces his amplifier design career from a Philips thesis project through Hypex Ncore to Purifi's Eigentakt modules.

Bruno Putzeys on how the Purifi Audio startup began as two amplifier engineers finally getting the chance to work together.

Purifi Audio is best known outside the industry for a single, blunt claim: the lowest-distortion loudspeaker drivers and amplifiers ever...

With their decades of engineering expertise in both circuit types, McIntosh has the experience needed to seamlessly combine both into...

A "large" front speaker sounds like it should handle the bass on its own. In the Lyngdorf bass management setup...

Most listeners who run RoomPerfect come away satisfied with the result. But "satisfied" and "exactly to my taste" are not...

A RoomPerfect measurement is not a quick sweep-and-done affair, and that is by design rather than by accident. The RoomPerfect...

Point a single measurement microphone at a loudspeaker, and you get one opinion about how a room sounds. Point it...

The biggest risk in automated room correction is not that it fails to fix a problem. It is that it...

Call a system "5.2" instead of "5.1", and it is fair to ask whether that second number is actually doing...