From the Beatles to Santana, Jeff Beck to Stevie Ray Vaughan—some of the most iconic tones in music history have featured the unmistakable swirl of a rotary speaker. Now you can capture that classic sound and go even further with the BOSS RT-20 Rotary Sound Processor.

Part of BOSS’s acclaimed Twin Pedal series, the RT-20 uses COSM modeling technology to deliver highly realistic rotary speaker effects, complete with adjustable Rise Time, Horn and Bass speed, and even onboard Overdrive for rich, saturated textures. Whether you're chasing vintage soul and blues vibes or looking to push into experimental territory, the RT-20 brings inspiring tone-shaping tools to your pedalboard.

And it’s not just about sound—the RT-20 also features a built-in graphical display that visually represents the spinning rotors in real time. It’s a unique touch that makes the experience even more immersive and intuitive on stage or in the studio.

Perfect for guitar, bass, keys, or any instrument that needs a dose of that lush, modulating magic, the RT-20 isn’t just an effect—it’s a creative playground.

This Boss RT-20 Rotary Ensemble is in very good and works perfectly. 

Includes: Box