- Authentic rotary speaker sounds via COSM technology
- Slow/Fast transition time is adjustable from gradual to rapid change; optional Expression pedal can
- 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
Details: 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
It’s built like a tank and gives me that Leslie sound I’ve long been wanting to achieve.