KORG Volca Nubass Synthesizer Bass Machine with Nutube Vacuum Tube Circuitry, a 16-step Sequencer, Built-in Speaker, and Headphone Compatibility.

Powerful sound from a vacuum tube oscillator. An acid bass machine that perfects undulation and distortion. A vacuum tube oscillator circuit that lets you fully experience the charm of Nutube. A transistor ladder-type low-pass filter that produces a unique sound. A 16-step sequencer with parameter automation. Connection terminals that allow synchronized play and external control.