The literature on power amplifiers frequently discusses the importance of power-supply rejection in audio amplifiers, particularly in reference to its possible effects on distortion [4]! I have (I ...

One of my first jobs as an engineer was at Empire Scientific Corp. in Garden City, NY in 1972. This was a high-end audio company that made speakers, turntables and phonograph cartridges. We had some ...

Samsung’s 2025 Q-series soundbars, including the HW-Q990F and HW-QS700F, feature AI Sound Optimisation, Dynamic Bass Control, and Active Voice Amplifier Pro for enhanced audio. They include a ...

2x 500W in 2 Ohm BTL at 50V or in 4 Ohm BTL at 70V, with 97% efficiency 1x 1000W in 1 Ohm PBTL at 50V or in 2 Ohm PBTL at 70V, with 98% efficiency Less than 3W of total idle losses for the GaN power ...

A relatively new technology called the pure digital or Class-D amplifier has been introduced into the audio world. The Class-D architecture allows the input audio signal to stay in its digital format ...

We uncovered an audio myth on our YouTube channel I didn’t even know was being perpetuated by some esoteric amplifier companies. Apparently there is a belief that designing an amplifier to be too ...

Most of today’s portable music comes by way of battery-powered audio devices. Of course, sound systems are available for outdoor use, but they can be quite expensive and, as discussed here, ...

After 40 years of creating audio equipment, the last thing that Kostas Metaxas wanted to produce was “another box with transistors on a heatsink”. He was dreaming of the most spectacular architecture, ...

We have had the good fortune of testing some of the industry's best multi-channel amplifiers. If you are from the camp that all amps sound the same, then don't waste your time reading another ...