This classic sound originates from organ speakers and amplifiers, but the Rotary speaker effect has become an important effect in guitar music. With three different speaker voices, including a vibratone effect designed by Fender, make it easy to apply this effect in a versatile way. With the switchable Slow / Fast speeds, dynamics switch and built-in overdrive, everyone can perfect their own sound. In addition, this pedal adapts to your guitar style. The Sensitivity control changes the modulation strength based on your playing intensity.