The BOSS XS-1 Poly Shifter delivers instant retuning in a compact pedal, empowering players to change pitch on demand without sacrificing tone, feel, or momentum. Driven by advanced BOSS algorithms years in the making, the XS-1 transforms your instrument’s overall pitch while preserving its natural attack and character—whether you’re shifting tunings, simulating a capo, or exploring dramatic octave effects.
With speedy tracking, crystal-clear response, and balanced polyphonic performance, the XS-1 handles complex chords and sustained lead tones with stunning clarity. From subtle detuning to extreme pitch jumps, this pedal unlocks a new level of performance freedom for guitarists, bassists, and other instrumentalists.
Key Features
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Class-leading pitch shifting with newly developed BOSS algorithms
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Instantly change pitch for guitar, bass, and other instruments
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Natural feel that preserves your instrument’s core tone and attack
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Pitch range of ±7 semitones or ±3 octaves
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Balance knob for blending effect and direct sound
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Detune mode (±20 cents) for rich doubling effects
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Pedal switch selectable for toggle or momentary operation
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External footswitch support for quick access to up to three tuning setups
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Expression pedal input for real-time pitch control
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BOSS five-year warranty
Natural Sound with Advanced BOSS Technology
To create the XS series, BOSS engineers pioneered new approaches to real-time pitch shifting that eliminate the artifacts often found in conventional designs. A purpose-selected DSP platform and finely tuned algorithms deliver polyphonic shifting that feels musical and organic across all pickups, playing styles, and pedalboard setups—faithfully reproducing everything from tight rhythm chords to expressive leads.
Redefining Pitch Shifting for Live Performance
Traditional retuning disrupts a set with pauses, guitar swaps, or tone-compromising solutions. The XS-1 lets you retune instantly—keeping great sound, response, and feel—so you can play drop tunings, change keys to suit a vocalist, create extended-range textures, and move seamlessly between songs.
Wide Range, Simple Controls
The familiar BOSS compact layout makes dialing in sounds fast and intuitive. Use semitone shifts for instant key changes, octave modes for 12-string textures or parallel guitar/bass sounds, and the Balance control to blend direct and shifted signals. Detune mode adds lush, high-definition doubling without muddiness.
Supreme Creative Command
Tailor the XS-1 to your performance style with flexible control options. Choose standard on/off or momentary switching, connect external footswitches for fast alternate tunings, or add an expression pedal to morph the XS-1 into a dynamic pitch-bending tool for dramatic, expressive sweeps.
