Authentic rotary speaker sounds and behaviors condensed into a space-saving BOSS compact pedalThree versatile modes include a vintage rotary sound and two modified tones with enhanced spatial effectsVirtual rotor display with lights that indicate treble and bass rotor speedsFast/slow rotor speed controlDrive knob to add vintage tube saturationRise/Fall Time switch adjusts the transition time between rotor speedsDrive/Balance switch assigns the Drive knob to control the saturation amount or the volume balance between the treble and bass rotorsFour selectable pedal switch modes for bypassing the effect and controlling the rotor speed in various ways while performingSupport for advanced control with external footswitches or an expression pedal (speed, brake, and other functions)Mono/stereo input and outputTwo stereo output modes: standard stereo (default) or individual wet and dry outputsBOSS five-year warranty