Boss RT-20 sets the new standard in Rotary Speaker Simulation from a stompbox style effects processor. Boss RT-20 Rotary Ensemble Multi Effects Processor features a twin pedal design and employs COSM modelling technology. RT20 authentically reproduces classic rotary-speaker sounds.
From the Beatles to Jeff Beck, Santana to Stevie Ray, many guitar greats have embraced the rotary-speaker sound on stage and in the studio, and with the all new Boss RT20 so can you. RT-20 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.
Years of intensive research and development have made Roland and BOSS world leaders in modelling technology. Roland's breakthrough Composite Object Sound modelling (COSM) uses the advantages of multiple modelling methods, and succeeds in accurately emulating existing sounds as well as producing sounds that have never before been created. With RT-20, COSM is used to simulate classic rotary characteristics, and beyond. The virtual horn and bass speaker can be independently adjusted, while Boss RT-20’s unique graphic display provides a realtime view of the rotation pattern and speed.
Guitars and keyboards alike can be plugged into RT-20. You can use the Drive Type switch to optimize the effects for guitar or keyboard. Surround your listeners in animated sound with the RT-20’s dual outputs, which enable true stereo effects. Add colour by adding an Expression pedal (such as the new BOSS FV-500H/FV-500L, optional), which lets you control parameters such as rotation speed seamlessly from slow to fast in real time. The RT-20’s phone jack is handy for private practice and experimentation.
Thanks to its stunning visual display, Boss RT-20 might be the most eye-catching pedal in BOSS history. The spinning lights don’t just look cool, they also show the audio-rotation characteristics of the RT-20 in real time. The center of the display, illuminated in red light, represents the virtual horn. The outside ring, illuminated in blue, displays the rotation of the virtual bass speaker.