Boss XS-1 PolyShifter Pitch Effects Pedal

Perform Seamless Retuning with the Boss XS-1 PolyShifter Pitch Effects Pedal

The Boss XS-1 Poly Shifter packs cutting-edge performance into a compact pedal. Powered by advanced polyphonic pitch-shifting technology built on decades of expertise, the XS-1 is crafted for musicians who demand precision, flexibility, and ease of use.

• Instant retuning capability without pausing creativity
• Brand-new algorithm leverages ultra-fast attack, preserving clarity, technique, and instrument character
• Polyphonic pitching delivers stunning, glitch-free performance, even when playing full chords or fast melodic lines
• Natural-sounding pitch shifter pairs well with other effects
• Fully supports bass frequencies
• Durable design ensures stable operation for gigging
• Natural pitch shifting within a range of six octaves (three up to three down)
• Shift knob allows quick selection between 1–7 semitone or 1–3 octave intervals
• Detune mode adds depth and richness like a doubling effect
• Shift Up function delivers convenient capo-style operation
• Emulate bass instruments on guitar by shifting down one octave
• Craft harmonized solos and effects using semitone shifts
• Balance knob allows quick adjustment between wet and dry signals
• Shift knob provides effortless control over pitch shift amount
• Shift switch toggles pitch between up, down, or slightly detuned (±20 cents)
• Toggle/Moment switch selects between latching or momentary operation
• External footswitch control for two different settings (three tunings total)
• Expression pedal enables real-time control for dynamic pitch bending effects

SPECIFICATIONS

• Size (mm): 73 x 129 x 59
• Size (inches): 2-7/8 x 5-1/8 x 2-3/8
• Weight (kg): 410g
• Weight (lb): 15oz

In the Box

• Leaflet (“Using the Unit Safely,” “Important Notes,” and “Information”)
• Dry battery (9V, 6LR61 or 6LF22)

Manufacturer: Boss
Model: XS-1
SKU: I848041-N-13-WHXX
UPC: 761294519332

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Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

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