The New Standard in Rotary Speaker Simulation

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. Today BOSS proudly announces the newest member of its Twin Pedal series — the RT-20 Rotary Sound Processor. Employing COSM®-modelling 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 by COSM® technology
• Slow/Fast transition time is adjustable from gradual to rapid change; optional Expression pedal can control speed in real time
• Onboard Overdrive effects
• Adjustable mix balance between Treble Rotor and Bass Rotor
• 4 types of sounds, from standard rotary speaker effects to rock-oriented tones, UNI-V, and more
• Guitar/Keyboard switch
• Dazzling virtual-rotor display
  
  

COSM Technology

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 the RT-20, COSM is used to simulate classic rotary characteristics, and beyond. The virtual horn and bass speaker can be independently adjusted, while the RT-20’s unique graphic display provides a realtime view of the rotation pattern and speed.

Connections

Guitars and keyboards alike can be plugged into the RT-20; 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.

Virtual Rotor Display

Thanks to its stunning visual display, the 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. It’s attractive and informative!

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