Packing the immense, whirling sound of a rotary speaker system without the immense weight and price, the Neo Instruments Ventilator II gives you true rotary simulation in a modern package. Designed to replicate the tone of a Leslie 122 rotary cab, and in true fashion offers individual controls for the treble and bass along with separate slow and fast speed controls. Capable of switching between speeds with the stomp of a switch, this pedal pumps out vintage tone with a contemporary construction that will last for years.