BOSS - RT-20 | Rotary Ensemble used guitar The BOSS TU-3 is the

The BOSS TU-3 is the world’s go-to stompbox tuner

and a deluxe

PICKUPS Bartolini MK-1 Pickups

plus vintage silver knob for battery compartment access

BOSS - RT-20 | Rotary Ensemble used guitar The BOSS TU-3 is theOverview 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