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 ...

PS Audio’s flagship 600-watt hybrid tube/solid-state monoblock power amplifier is the last to be designed in partnership with legendary audio engineer Bascom H. King. Inflation and supply chain issues ...

In Part 1 of this series on audio fundamentals (“Let’s Talk About Some Basics of Audio for Radio”), we discussed audio problems and how to handle audio transformers. Most of today’s studios don’t need ...

The efficiency and size advantages of Class D audio amplification in battery- powered devices are well known. These advantages are now extended to amplifiers up to 500W, made possible by solidstate ...