BOSS XS-100 Guitar & Bass Pitch Shifter Pedal

The Boss XS-100 is a next generation polyphonic pitch shifter designed to deliver natural tracking, wide creative range and deep real-time control. Built around new Boss pitch algorithms, it offers clean, artifact-free shifting across complex chords, low notes and expressive lead lines, making it one of the most advanced pitch tools available for guitar and bass.

The onboard expression pedal provides smooth, linear control over pitch movement, allowing shifts up or down by as much as four octaves in either direction. The integrated toe switch enables momentary pitch jumps with adjustable rise and fall times, opening the door to dramatic sweeps, controlled bends and dynamic performance effects. Fixed semitone steps across the full eight octave range allow instant drop tunings, capo-style changes and experimental sound design.

The XS-100 includes 30 onboard memories for storing custom setups, along with a clear display for editing parameters. Detune mode adds subtle or wide doubling effects, while adjustable pedal curves and response settings let players tailor the feel to their technique. TRS MIDI I/O expands control options, and the dedicated analog dry-through output preserves the original signal path with zero latency.

With its combination of precision tracking, deep programmability and expressive control, the XS-100 is a powerful pitch workstation built for modern players who want more than a traditional shifter can offer.