Not all amplifiers play by the same rules—and Class A/B designs strike a careful balance between purity and power. In this episode of The Audiophile’s Guide, we break down how Class A/B amplification works, blending the sweetness of Class A with the efficiency of Class B. Discover how biasing, crossover distortion, and thermal performance shape the sound, and why this classic topology remains a favorite in high-end audio. When executed well, it delivers music with both grace and grip.

The Audiophile’s Guide publishes daily. Want to learn more or join the HiFi Family? Visit PS Audio. To get your own copy of Paul McGowan’s The Audiophile’s Guide, get it on Amazon.