I test audio kit for a living and these are among the best pound-for-pound powered stereo speakers I've heard

In short, the Ruark MR1 Mk3 has been worth the wait, and sits firmly in the best stereo speakers on the market. Which is not ...
IEEE

A C-Band GaN High-Efficiency Power Amplifier with Input Harmonic Control

Abstract: A C-band power amplifier is designed using GaN HEMT transistor CGH40035F. In order to improve the efficiency, input harmonic control technique is adopted in the design. To achieve greater ...