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Boss XS-1 Poly Shifter 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.

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    BOSS XS-1 Poly Shifter Effects Pedal

    Meet the BOSS XS-1 Poly Shifter, the pitch-shifting powerhouse that transforms your guitar, bass, or any instrument into a sonic shapeshifter. Want to add celestial harmonies an octave higher or dive into deep, subterranean growls? This magnificent machine molds your melodies with pitch-perfect precision, delivering a sound so pristine it will leave your audience speechless. Get ready to shift, sculpt, and seriously stun, this pedal delivers crystal-clear pitch shifts that'll make your audience do a double-take.

    BOSS XS-1 Features That Hit All The Right Notes

    Features That Hit All the Right Notes

    Built with BOSS's latest algorithms, the XS-1 doesn't just change your pitch — it preserves the soul of your sound. From subtle detune effects that add richness and depth to dramatic octave jumps that redefine your instrument entirely, this pedal keeps your tone's character intact while opening up a universe of creative possibilities.

    • Class-Leading Pitch Algorithms: The XS-1 uses cutting-edge BOSS technology to deliver pitch shifts so clean and natural, you'll forget you're using an effect. No warbling, no digital artifacts — just pure, musical pitch manipulation.
    • Massive Range: Go from +/- seven semitones for subtle shifts to a whopping +/- three octaves for dramatic transformations. Turn your guitar into a bass or send it into the stratosphere.
    • Smart Balance Control: Dial in the perfect mix between your dry signal and the shifted sound. Keep some of your original tone for fullness or go full-effect for maximum impact.

    Playability That Keeps You in the Zone

    The XS-1 isn't just about great sound — it's built for real-world performance where every millisecond matters and every note counts.

    • Instant Response: No lag, no hesitation. The XS-1 tracks your playing with lightning speed, keeping you locked in the groove whether you're laying down rhythm or blazing through solos.
    • Detune Magic: The subtle +/- 20 cent detune function creates lush doubling effects that make your single guitar sound like a full ensemble. Perfect for filling out your sound without overwhelming the mix.
    • Flexible Switching: Choose between toggle mode for set-and-forget operation or momentary mode for dramatic on-the-fly effects that punctuate your performance.
    BOSS XS-1 Playability That Keeps You in the Zone
    BOSS XS-1 Professional Control and Connectivity

    Professional Control and Connectivity

    This pedal grows with your rig, offering expansion options that serious players demand.

    • External Footswitch Ready: Connect up to three external footswitches for instant access to your favorite tuning setups. Switch between different pitch combinations without breaking your performance flow.
    • Expression Pedal Control: Hook up an expression pedal for smooth, linear pitch control that responds to your foot movement. Create whammy-style pitch bends and swooping effects that bring new life to your solos.
    • Road-Tested Durability: Built to BOSS's legendary standards with their famous tank-like construction that survives countless gigs and studio sessions.

    Your Gateway to Pitch-Perfect Creativity

    The BOSS XS-1 Poly Shifter isn't just another effects pedal — it's a creative catalyst that expands your musical vocabulary. Whether you're a guitarist looking to add bass-like low-end, a bassist wanting to explore higher registers, or any musician ready to break sonic boundaries, this pedal delivers professional results with intuitive operation.

    BOSS XS-1 Your Gateway to Pitch-Perfect Creativity

    BOSS XS-1 Poly Shifter Features:

    • New BOSS algorithms for pristine pitch shifting quality
    • +/- Seven semitone or +/- Three octave range
    • Clear response that maintains fundamental sound character
    • Balance knob for effect/direct signal mixing
    • Detune function (+/- 20 cents) for rich doubling effects
    • Toggle or momentary pedal switch modes
    • External footswitch connectivity for up to three presets
    • Expression pedal input for linear pitch control
    • BOSS 5-year warranty
    • Compatible with guitar, bass, and other instruments
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    Boss XS-1 Poly Shifter Effects Pedal Specifications

    Boss XS-1 Poly Shifter Effects Pedal Specifications
    Product Specifications
    • AD Conversion: 24 bits + AF method
      • AF method (Adaptive Focus method) This is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (SN) ratio of the AD and DA converters. 
    • DA Conversion: 32 bits
    • Sampling Frequency: 48 kHz
    • Nominal Input Level: -20 dBu
    • Maximum Input Level: +7 dBu
    • Input Impedance: 1 MΩ
    • Nominal Output Level: -20 dBu
    • Maximum Output Level: +7 dBu
    • Output Impedance: 1 kΩ
    • Recommended Load Impedance: 10 kΩ or greater
    • Bypass: Buffered bypass
    • Controls:
      • BALANCE knob
      • SHIFT knob
      • PEDAL MODE switch
      • SHIFT DIRECTION switch
      • Pedal switch 
    • Indicator: CHECK indicator (Used for check battery)
    • Connectors:
      • INPUT jack: 1/4" phone type
      • OUTPUT jack: 1/4" phone type
      • CTL/EXP jack: 1/4" TRS phone type
      • DC IN jack 
    • Power Supply:
      • AC adaptor
      • Alkaline battery (6LR61 or 6LF22, commercially available) x 1 
    • Current Draw: 120 mA
    • Expected Battery Life Under Continuous Use: Alkaline battery (6LR61): Approximately 3 hours
      • * This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use. 
    • Dimensions (W x D x H): 2-7/8" x 5-1/8" x 2-3/8" / 73 x 129 x 59 mm
    • Weight (including battery): 410 g / 15 oz
    • Accessories:
      • Leaflet (“USING THE UNIT SAFELY”, “IMPORTANT NOTES” and “Information”)
      • Alkaline battery (9 V, 6LR61 or 6LF22) 
    • Options (sold separately):
      • AC adaptor: PSA series
      • Footswitch: FS-5U
      • Dual footswitch: FS-6, FS-7
      • Expression Pedal: EV-30, FV-500L, FV-500H, Roland EV-5 
    • * 0 dBu = 0.775 Vrms
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