The BOSS XS-1 Poly Shifter pitch and octave effects pedal redefines what a compact stompbox can do. With decades of pitch-shifting expertise distilled into a rugged, gig-ready unit, the XS-1 delivers seamless polyphonic performance that keeps up with any style of play. From instant capo shifts and drop tunings to lush detuning effects and harmonized solos, this pedal makes bold tonal moves accessible at the tap of your foot. Whether you’re a gigging guitarist, bassist or studio creator, the XS-1 unlocks professional-grade flexibility without sacrificing your instrument’s natural tone or feel.
Polyphonic Pitch-Shifting Power
At the heart of the XS-1 is BOSS’s brand-new polyphonic algorithm, engineered for flawless pitch-tracking across chords, leads and bass lines. Unlike older pitch shifters that stumble with complex voicings, the XS-1 delivers smooth, glitch-free performance that preserves every nuance of your playing. This technology ensures you can shift into alternate tunings, octave-doubled textures or dramatic pitch bends without compromising clarity. For live players, that means confident transitions between tunings mid-set—or even mid-song. For creators in the studio, it means seamless experimentation without tedious retakes or editing.
Six-Octave Span for Extended-Range Flexibility
Covering a massive six-octave span—three up and three down—the XS-1 opens doors to sounds far beyond your instrument’s standard register. The Shift knob quickly selects intervals from one semitone to three octaves, giving you the power to retune for drop-heavy riffs, emulate bass lines on guitar or add soaring octave-up leads. A dedicated Detune mode enriches your sound with chorus-like depth, while semitone shifts unlock harmonized solo lines. With its versatile range, the XS-1 functions as both a practical tool for transposition and a creative engine for building entirely new sonic landscapes.
Streamlined Controls and Advanced Performance Features
Designed with the working musician in mind, the XS-1 balances deep functionality with fast, intuitive control. The Balance knob lets you blend dry and effected signals, tailoring your tone from subtle enhancements to full transformation. Dedicated toggle switches provide instant access to up, down and detune modes, with the option to set the pedal for either latching or momentary operation. For expanded setups, external footswitches and expression pedals can be connected, enabling dynamic pitch bends or quick recall of multiple tunings during a performance. It’s everything you need for smooth, on-the-fly creativity.
Road-Ready BOSS Build With Pro-Grade Conversion
True to BOSS’s reputation, the XS-1 is built to withstand the rigors of the road. Its compact, durable enclosure houses premium 24-bit AD and 32-bit DA conversion with Adaptive Focus technology, delivering pristine sound quality with ultra-low noise. Buffered bypass ensures your signal remains strong in any pedalboard chain, while flexible power options—9V battery or standard AC adapter—make it equally reliable on stage or in the studio. Lightweight yet rugged, the XS-1 gives you professional performance in a pedalboard-friendly format that’s ready for years of dependable service.
Explore New Sonic Dimensions With the BOSS XS-1
The BOSS XS-1 Poly Shifter pitch and octave effects pedal is an expressive new tool for your arsenal, dedicated to expanding your instrument’s possibilities. With unmatched polyphonic accuracy, deep creative range and player-focused design, it gives you the freedom to explore new tunings, textures and tonal directions at will. Whether you’re chasing drop-tuned heaviness, shimmering layers or innovative harmonies, the XS-1 ensures you can get there instantly, without changing instruments or breaking your flow. Step on, shift up or down and experience a whole new level of expressive power.