Rotor, a rotary speaker Rack Extension from Reason Studios. Meticulously modeled on the Leslie 122, Rotor brings the sound of the classic rotary speaker design to Reason—perfect for adding a vintage flavor to organs, guitars, vocals and keys. Rotor is perfect for authentic organ sounds, old-school guitar tones or as a unique shaper in your sound design toolbox. Whatever you use it for, Rotor will add a vintage flavor to your Reason rack.