Having built a number of vacuum tube output transformer-less (OTL) amplifiers in recent years, it seemed as though it might be a good idea to try combining older with newer technology and using both ...

This project was a sort of challenge: designing an audio amplifier capable of delivering a decent output power with a minimum parts count, without sacrificing quality. The Power Amplifier section ...

Cambridge Audio has just unveiled a new monoblock power amplifier, a fresh addition to the firm's high-end Edge series. The Edge M takes the principle design of the existing Edge W power amplifier and ...