Boss RT-2 Rotary Ensemble Pedal

Boss RT-2 Rotary Ensemble Pedal | No Limit Guitar Co, Idaho Falls

The Boss RT-2 Rotary Ensemble puts the legendary Leslie rotary speaker effect on your pedalboard in a footprint no larger than a standard single-switch BOSS Compact pedal — the spiritual successor to the celebrated RT-20, now in a space-saving format without sacrificing its expansive tonal range. Variable rotary speeds, a tube-simulated drive circuit, a virtual rotor display, and customizable horn/bass balance recreate the authentic, dimensional character of classic Leslie cabinets like the 122, 147, and 981 — the rotary sound that defined organ tones through the 1950s and '60s before becoming a guitar staple for artists from the Beatles and Hendrix to Stevie Ray Vaughan and Soundgarden. With stereo outputs, selectable rise/fall ramping, a natural Brake function, and real-time speed control via expression pedal or external footswitch, the RT-2 delivers everything from subtle chorus-like shimmer to expressively fast, swirling textures for guitarists, keyboardists, and vocalists alike.

Product Overview

The Leslie rotary speaker effect is one of the most historically significant and texturally distinctive sounds in modulation — created by physically rotating speakers (a horn for high frequencies, a rotor for low frequencies) inside a cabinet, producing a swirling, Doppler-shifted modulation that feels fundamentally different from electronic chorus or vibrato because it's rooted in genuine acoustic motion. The RT-2 recreates this character through detailed virtual rotor simulation, with two rotary controls — one for slow speed, one for fast — giving players more exacting control over the simulated rotors than even the original physical Leslie cabinets typically offered with their one or two fixed speeds.

When activated, the RT-2's high- and low-frequency virtual drivers ramp up naturally, mimicking the physical motor activation of original Leslie cabinets — selectable rise and fall times let players choose how quickly the effect reaches full speed and how it winds down when deactivated. The Brake function takes this realism further, slowing the virtual rotors down at a natural rate before coming to a complete stop rather than cutting off abruptly — producing the slight airy, decelerating quality that's instantly recognizable from real Leslie cabinets being switched off mid-performance.

A 3-position Mode switch provides three distinct foundational characters for the rotary effect — from vintage, classic rotary stylings to a more hyper-modulated, intense voicing that delivers enormous sonic width for players who want the effect pushed further than traditional Leslie tones would go. The tube-simulated drive circuit adds bite and character to the spinning sound, and on the rear panel, a Drive Knob switch transforms the Drive control into a horn/bass rotor frequency balance — letting players dial in more chiming top-end presence or more booming low-end weight depending on what the mix calls for, all from controls accessible on a single pedal enclosure.

Stereo outputs are essential to a convincing rotary effect — the spinning, modulating character of a Leslie cabinet is fundamentally a spatial phenomenon, and the RT-2's stereo output allows that spatial movement to translate fully into a stereo rig for genuine immersion. The single-button, multimode footswitch handles both effect on/off and the slow/fast switch — holding the footswitch down toggles between speeds, the same gesture organists have used for decades to kick a Leslie cabinet into high gear for a solo. The Speed control jack accepts an expression pedal or external footswitch for real-time control over rotary speed and other functions — opening up dynamic, performance-driven control over how and when the rotary effect accelerates or decelerates.

Ideal For

• Guitarists, keyboardists, and vocalists who want the authentic Leslie rotary speaker sound that has defined organ tone and influenced decades of guitar playing
• Players familiar with the celebrated RT-20 who want the same depth of control in a smaller pedalboard footprint
• Musicians who want realistic, physically modeled rotor ramp-up, ramp-down, and braking behavior rather than simple on/off modulation
• Performers who want real-time speed control via expression pedal or external footswitch for dynamic, dramatic rotary swells
• Stereo rig users who want the full spatial dimension of rotary modulation to translate into their setup
• Guitarists in Idaho Falls looking for a compact, feature-rich rotary speaker simulator inspired by classic Leslie cabinets

Key Features

Authentic Leslie Rotary Speaker Simulation
The RT-2 recreates the swirling, Doppler-shifted modulation of classic Leslie cabinets like the 122, 147, and 981 — the rotary sound that defined organ tone through the 1950s-60s and became a guitar staple for artists from the Beatles and Hendrix to Stevie Ray Vaughan and Soundgarden.

Independent Slow and Fast Speed Controls
Two rotary controls — one for slow speed, one for fast — give players more exacting control over the virtual rotors than the original Leslie cabinets' fixed one or two speeds typically allowed.

Natural Rise/Fall Ramping and Brake Function
Selectable rise and fall times control how quickly the virtual rotors ramp to full speed and wind down, while the Brake function slows the rotors to a natural stop rather than an abrupt cutoff — adding the airy, decelerating quality of a real Leslie cabinet powering down.

3-Position Mode Switch
Three distinct rotary voicings range from vintage, classic rotary character to hyper-modulated, intense settings that deliver enormous sonic width — covering everything from subtle chorus-like shimmer to dramatic, swirling textures.

Tube-Simulated Drive with Horn/Bass Balance
A tube-simulated drive circuit adds bite to the rotary sound, and a rear-panel switch transforms the Drive control into a horn/bass rotor frequency balance — dialing in more chiming highs or booming lows as needed.

Stereo Outputs
True stereo outputs allow the spatial, swirling character of the rotary effect to fully translate into a stereo rig — essential for the immersive quality that defines convincing Leslie simulation.

Multimode Footswitch and External Speed Control
The single-button footswitch handles effect on/off and slow/fast switching by holding it down, while the Speed control jack accepts an expression pedal or external footswitch for real-time, dynamic control over rotary speed.

Virtual Rotor Display
An updated virtual rotor display visually represents each simulated speaker's rotation in real time — giving players an immediate visual reference for the rotary effect's current speed and state.

What's Included

• Boss RT-2 Rotary Ensemble Pedal
• Free standard shipping

Note: 9V DC power supply, expression pedal, and external footswitch sold separately.

Technical Specifications

Get Your Hands on This Rotary Ensemble Pedal Today

The Boss RT-2 is available now at No Limit Guitar Co in Idaho Falls. Stop in to experience the swirling Leslie rotary sound and virtual rotor display in person, or reach out online to order yours — decades of rotary speaker tone, now on your pedalboard.