The BOSS RT-2 Rotary Ensemble is a modulation pedal that recreates the swirling, spacious sound of a vintage rotary speaker cabinet. It gives your guitar a rich, moving tone that can sound warm, shimmery, watery, and almost three-dimensional.

Unlike a standard chorus or phaser, a rotary effect simulates speakers physically spinning at different speeds, creating subtle pitch changes, volume fluctuations, and a distinctive swirling motion.

Rotary Ensemble+1

What does it sound like?

• Warm and swirling: Adds movement and depth to clean guitar chords.
• Shimmering and spacious: Gives arpeggios and sustained notes a rich, dimensional quality.
• Fast, throbbing modulation: Switching to the fast rotor speed creates an energetic, swirling effect.
• Slow, dreamy movement: The slow setting produces a smoother, more relaxed modulation.
• Gritty vintage tones: Its Drive control adds tube-style saturation inspired by classic rotary speaker amplifiers.

The effect is especially recognizable in vintage organ music, blues-rock, psychedelic rock, and classic rock, but it can also add subtle movement to modern clean guitar tones.