BOSS XS-100 Poly Shifter

The BOSS XS-100 Poly Shifter pedal revolutionises polyphonic pitch-shifting with unprecedented precision and fluidity. Its next-generation technology features an ultra-fast algorithm that respects the clarity and natural character of your guitar or bass, even on complex chords or fast melody lines. The built-in expression pedal gives you precise glissandos over ±4 octaves, and the Tune Down switch instantly triggers a subtle retune or capo effect down to ±50 cents. With its LCD screen and 30 memorisable presets, this is a machine designed for unlimited creativity. A tool for mastering sound that's both technical and accessible, it should quickly become your best ally on stage.

The BOSS XS-100 Poly Shifter opens up a world of sonic possibilities far beyond traditional pitch effects. Thanks to its ultra-fast algorithm and polyphonic support, it can manipulate the pitch of whole chords or fast melodic lines without the slightest artefact or cut.Whether you're looking to create smooth glissandos over ±4 octaves or play with instant retunes via the Tune Down switch, this pedal transforms your guitar or bass into an instrument capable of exploring unprecedented harmonic textures, from subtle detuning to live capo effects. Its flexibility is equally suited to expressive solos and complex rhythms.In the studio or on stage, the XS-100 becomes a reliable and intuitive partner. The integrated expression pedal, with its adjustable curve, lets you control pitch variations in real time, bringing an organic edge to your performances. Its 30 memorisable presets make it easy to switch between different effects, while the LCD interface makes settings precise and accessible even in low-light conditions. MIDI support and additional inputs extend the control possibilities to suit all your set-ups. In short, this pedal combines technological innovation with musical creativity, whatever your playing style.

The BOSS XS-100 Poly Shifter gives you access to a wide range of uncompromising pitch-shifting effects. The rubber pedal expression provides ultra-fluid and responsive control, perfectly calibrated to follow your every nuance. You can adjust the curve of the pedal to suit your playing, offering a tailor-made feel. The foot switch can be customised to trigger an effect or change octave on the fly, perfect for spicing up your live performances.The pedal maintains a clean signal thanks to its 24-bit analogue-to-digital conversion with BOSS Adaptive Focus for a clear, faithful sound. Full low-frequency support and no glitch, even on fast chords, ensure that you get the best sound possible, true to your touch.The 30 adjustable memories provide quick access to your favourite set-ups, while the LCD interface offers simple, visual navigation. MIDI I/O and additional connections let you extend control in the studio or on stage, as you need it.The XS-100 Poly Shifter from BOSS, the world's leading effects pedal manufacturer, is the culmination of decades of innovation.

• Advanced pitch-shifting workstation with deep control options and an eight-octave range
• Total pitch control for guitar and bass
• Class-leading pitch shifting quality realized with new BOSS algorithms
• Clear response and natural feel that retains the fundamental sound character
• Smooth onboard pedal with integrated toe switch provides linear pitch control across +/- four octaves
• Fixed pitch settings in semitone steps across eight octaves for drop tunings, capo effects, and otherworldly tones
• Detune function (+/- 50 cents) to create rich doubling effects
• Adjustable pedal curve and response
• Fully customizable toe switch and footswitches for momentary pitch changes, instant retuning, and more
• Clear display for editing sounds and 30 memories for storing favorite setups
• Dedicated analog output that mirrors the input signal
• Connect up to two footswitches or an expression pedal for extended control
• TRS MIDI I/O for external control and sending MIDI commands with the pedal and footswitches
• USB connector for system updates
• Natural Sound with Advanced BOSS Technology

In developing the XS series, BOSS engineers pioneered new methods to advance real-time pitch shifting and eliminate the tonal artifacts common in conventional designs. Powered by finely tuned algorithms and a specially selected DSP platform, the XS-100 provides balanced polyphonic performance that feels natural and musical across all playing styles, pickup positions, and pedal setups. Your instrument’s attack and tonal character are fully preserved, and even complex chords and sustained lead tones—typically a challenge for pitch shifters—are reproduced with stunning clarity.