HA-300 MK3, the third-generation evolution of Cayin flagship 300B tube headphone / speaker amplifier.

With upgraded power supply architecture, GZ34 / 5AR4 rectifier tubes for wider tube-rolling flexibility, premium DUELUND coupling capacitors, upgraded transformers, and classic point-to-point wiring, the HA-300 MK3 delivers a listening experience that is refined, powerful, and deeply musical.