The BOSS XS-1 Poly Shifter gives you instant alternate tunings, capo-style shifts and creative pitch effects from a standard BOSS compact pedal.
At its core is BOSS's latest polyphonic pitch-shifting technology, developed to address the things that have traditionally made digital retuning feel unnatural. The XS-1 tracks quickly, retains the attack and character of your instrument and handles full chords as confidently as single-note playing.
Shift your guitar or bass up or down seven semitones, jump as far as three octaves, add subtle detuning or connect an expression pedal for continuous pitch effects.
The XS-1 is the perfect solution for guitarists and bassists who often change tunings. Instantly switch from standard to Eb or D, adjust for a vocalist, or access alternate tunings without swapping guitars or pausing to retune.
The big difference here is the quality of the pitch shifting. BOSS has designed the XS-1 to preserve the attack, clarity and character of your instrument, even across full chords. That matters when you're using pitch shifting as a practical tuning tool; you want your guitar to still sound and respond like your guitar.
Operation is simple. Select your pitch shift, set the Balance to the effected signal and step on the pedal. You have ±7 semitones for practical tuning changes, plus a three-octave range, detune and dry/effect blending when you want to use the XS-1 more creatively.
For live players, this can significantly simplify your rig. If you're carrying an extra guitar purely for alternate tunings, the XS-1 may remove the need. Add external footswitches and you can have up to three tuning setups ready to go, or connect an expression pedal for real-time pitch control.
If your priority is fast, convincing tuning changes in a standard BOSS compact pedal, the XS-1 is exactly what we'd recommend.
