Twist the TubePre v2 Drive saturation control and add the “color” that only a hand-selected 12AX7 vacuum tube can deliver? from gentle warmth to total fuzz. Unlike other compact tube preamps, TubePre v2 starts with the low noise, high headroom class A XMAX preamp input stage found in our Premium interfaces and digital mixers. Discrete components and high-voltage operation deliver best-in-class dynamic range and detail not found in other single-channel tube preamps.