The Korg Pitchblack Pro is a rackmountable chromatic tuner for stage and studio use, with pinpoint accuracy and stunning 3D display. A buffered output prevents your signal from losing any of its volume or fidelity, and the handy mute function lets you tune silently. Slide the Pitchblack Pro into your rack, switch between regular, half-strobe, and strobe modes of metering, and easily tune your guitars and basses in a flash.