Rapid Retuning, Flawless Sound

The XS-1 Poly Shifter delivers instant retuning in a convenient, compact footprint. Driven by advanced BOSS algorithms years in the making, this magical pedal transforms the overall pitch while maintaining your instrument’s true character. You get speedy tracking, crystal-clear response, and zero compromise in tone—whether shifting down, simulating a capo, or using extreme octave jumps for effect. The versatile XS-1 unlocks a new level of performance freedom, making tuning changes fast, fluid, and seamless.

Features

Class-leading pitch shifting quality realized with new BOSS algorithms

Instantly change the pitch of a guitar, bass, or other instrument

Clear response and natural feel that retains the fundamental sound character

Change pitch across +/- seven semitones or +/- three octaves

Balance knob adjusts the mix between the effect and direct sound

Detune function (+/- 20 cents) to create rich doubling effects

Selectable pedal switch modes for toggle or momentary operation

Connect external footswitches for quick access to up to three tuning setups, or use an expression pedal for linear pitch control

BOSS five-year warranty