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 ...

If you already know about class A, B, and AB, they are all linear amplifiers with constant gain where the audio is fed to the base of a transistor. The latest class D audio amplifier is switch type ...

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 ...

Class-D audio amplifiers, also known as switching amplifiers, achieve high power efficiency by operating their output transistors as rapid on/off switches. An input audio waveform is converted into a ...

This "just add speakers" amplifier has a design that harkens back to 1970s hi-fi.

1. Is Amplifier Weight an Indicator of Robust Amplifier Design? You have to find out if the amplifier is a Class A/B analog amp or a Class D digital amplifier before you can generalize about weight ...

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, ...

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 ...

Marshall has launched the Bromley 450 party speaker in India, priced at Rs. 74,999. The portable Bluetooth speaker offers 360-degree sound, integrated stage lights, and support for microphone and ...

New streaming amplifier shows promise ...

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 ...

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, ...