The Balanced Audio Technology VK-75 brings new power and performance to the most advanced vacuum-tube amplifier architecture on the market. Like its predecessor, the classic VK-60, it incorporates all-triode zero-feedback topology, fully balanced operation, the ability to drive difficult loads, and true automatic biasing. Combine this heritage with greater power and a refined circuit design, and the result is an amplifier that reproduces music with sheer artistry.