Spinn

Klevgrand Spinn is a four-band rotating modulation effect that brings swirling movement and spatial depth to your tracks. Inspired by rotary speaker behavior rather than designed as a strict Leslie emulation, it suits producers who want anything from gentle motion to more animated textures on keys, guitars, synths, and other sources. Each frequency band has its own rotor, with independent slow and fast speeds, acceleration, deceleration, size, and modulation controls. Adjustable crossover points let you shape where the movement happens, while input-sensitive velocity makes each band’s rotation respond to its signal level. Switch between fast, slow, and off modes, then refine the result with stereo width, room simulation, and clean or hot amp modeling. Ready-made presets offer an easy starting point for hobby producers, while the per-band controls leave plenty of room for detailed sound design.