Boss RT-20 Rotary Ensemble Sound Processor


  • $33999

From the Beatles to Jeff Beck, Santana to Stevie Ray, many guitar greats have incorporated the rotary speaker into their rigs. With this in mind BOSS proudly presents the RT-20 Rotary Sound Processor. Employing COSM®-modeling technology, the RT-20 authentically reproduces classic rotary-speaker sounds. It offers adjustable Rise Time, Horn and Bass speed, Overdrive, and more. And not just for classic twirl, the RT-20 can be used to create unique overdrive and pulsating effects as well. This pedal sounds amazing, and offers a stunning graphical view of the virtual rotors on its built-in display.


  • Authentic rotary speaker sounds
  • Slow/Fast transition time is adjustable
  • Optional Expression pedal
  • Onboard Overdrive effects
  • Adjustable mix balance Treble / Bass Rotor
  • 4 types of sounds
    • Standard rotary speaker effects
    • Rock-oriented tones
    • UNI-V, and more)
  • Guitar/Keyboard switch

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