There is a four-position selector switch that selects the desired modulation effect. You can switch between Chop, Tremolo / Pan , and two combination effects we call Stir and Shake (these are all represented by icons in some models).
On the left side, the ratio control changes the pulse or chop width (square wave tremolo) from short to long.
On the left side, the rate control controls the chop rate when the slide switch is set to ‘preset’.
On the right side, the depth control adjusts the tremolo from 15% to 100% modulation depth.
On the right side, the rate control varies the tremolo speed when the slide switch is set to ‘preset’.
Tremolo: Versatile tremolo with modulation rate controlled on the fly by the pedal.
Rotating Speaker: Stereo rotating speaker effect with pedal adjustable rate.
Chopper: Entrancing rhythmic fully adjustable short or long pulses in stereo or mono with pedal-adjustable frequency.
Delay Emulator: All the texture of multiple echoes but without the encumbrance of a repeated note.
Panning Machine: Make your solos soar across the sound stage with a stereo auto-panner, and control your panning rate with the pedal.