Researchers developed a low-cost, scalable terahertz amplifier that could be used to make antenna arrays that can steer and focus high-frequency terahertz waves, for applications like high-resolution ...

Pedal amps aim to deliver the sound, feel and response of (usually) a tube amp, all in something that fits on your pedalboard. Some of the best pedal amps might only give you one style of amp - so ...

If you're looking for an entry-level stereo amplifier as your first step into a decent hi-fi system, then these two five-star models from Marantz and Rotel won't have escaped your attention. Marantz ...

Whether you’re looking for better sound quality or want to add some real bass to your stereo, an amplifier is necessary to get the most out of your speakers, especially if you’re using ...

If you're looking to dig into the world of hi-fi systems that consist of a separate stereo receiver or integrated amplifier that powers a set of passive speakers — whether your passion is ...

Abstract: This paper presents an alternative solution for higher frequency power amplifier design. Using a plastic-packaged GaN transistor and high-efficiency design techniques, a power amplifier for ...

Several foundries continue to develop new processes based on next-generation gate-all-around transistors, including more advanced high-mobility versions, but bringing these technologies into ...

A separate headphone amp with a built-in USB digital-to-analog converter (DAC) lets you use wired headphones with all of your mobile devices. We recommend the Fosi Audio DS1 because of its ...