Spinn is a four-band rotating modulation effect. It has similarities to, but doesn't aim to replicate, a Leslie speaker (call it a spin-off if you like). Four rotors (one per frequency band) with individual speed controls, acceleration and deceleration times, adjustable size and modulation. Each band also has a velocity control, which will adjust the speed according to the band's input level. Spinn also features custom amp modeling (clean or hot) and room simulation.