Shop online for Boss RT-20 Rotary Sound Processor Effect Pedal today. Now available for purchase from Midlothian Music of Orland Park, Illinois, USA

Boss RT-20 Rotary Sound Processor Effect Pedal

Midlothian Music values the importance of quality in craftsmanship, which is one of the many reasons why we are proud to be an Authorized Boss® Dealer. This item is new. 
Regular price $ 189.99 Sale price $ 239.99 Unit price per

Boss RT-20 Rotary Sound Processor Effect Pedal

A very lightly used effects pedal that is in MINT condition. Includes original packaging and paperwork. NOTHING is wrong internally nor cosmetically. It is ready to rock. In the original box as well.

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. Awesome organ sounds from your guitar.


  • RT-20 Rotary Sound Processor Effect Pedal
  • Twin Pedals
  • 4 Different Modes: 1 - Standard Rotary + Natural Overdrive ; 2 - Enhanced Rotary + Natural Overdrive ; 3 - Enhanced Rotary + Stack Amp Overdrive ; 4 - Uni-V + Stack Amp Overdrive
  • Control Effect/Direct Levels, Slow/Fast Speed, Balance, Overdrive
  • Guitar or Keyboard drive type
  • Stereo or Mono Input/Output jacks
  • 6 AA batteries or DC Boss PSA Power Adaptor
WE'RE EXPANDING!! 100's of music instruments and music gear MUST GO before we move into our expanded space this April! We are putting new items on display daily in our temporary store (around the corner next to FedEx). Click here to buy some of our clearance instruments online.

The Midlothian School of Music is now taking students for all instruments, including voice! Call us at 708-403-3733 or click here for more information.

When it comes time for you to let an instrument go, please consider donating it to the Guitars 4 Vets organization. Midlothian Music is a drop-off center for the program. Click here to learn more.

As a full service repair facility, you can trust buying used equipment from Midlothian Music. We clean, polish and refurbish each used instrument. Refurbish doesn't mean replate and refinish materials. The instruments are play tested and put in perfect playing condition.

Did you know that Midlothian Music carries thousands of new, used and clearance instruments and music equipment? Don't miss out! We upload new items on a regular basis, so be sure to bookmark us and follow us on social media.

Another hallmark of the Midlothian Music legacy since 1960 is our full-service repair center. No matter where you bought your music instrument, we have trained technicians with the experience and talent ready to perform most repairs in-house. Learn more about our services by clicking here.

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