BOSS XS-100 Poly Shifter

The BOSS XS-100 Poly Shifter takes pitch shifting to a whole new level, combining pro-grade sound quality with powerful performance features. Built with 24-bit AD conversion using BOSS’s Adaptive Focus method and 32-bit DA conversion, this pedal delivers ultra-clear tracking and outstanding signal-to-noise ratio. A 48 kHz sampling frequency ensures your chords, single notes, and harmonies come through with studio-level precision.

With 30 onboard memories, you can store and instantly recall your favorite pitch settings for stage or studio. A bright graphic LCD display makes navigating presets easy, while the intuitive controls—including EFFECT switch, TUNE DOWN switch, SELECT knob, and memory button—put everything at your feet. The onboard expression pedal (EXP1) allows real-time shifting, giving you dynamic control over your sound.

Connectivity is wide-open: stereo ins and outs, MIDI I/O, USB-C, and assignable control/expression jacks let you integrate the XS-100 seamlessly into any rig. And like every BOSS unit, it’s built tough, with buffered bypass, reliable power via the included AC adaptor, and expansion options for external footswitches and expression pedals.

Whether you’re layering subtle harmonies, tuning down for heavy riffs, or creating wild experimental textures, the BOSS XS-100 Poly Shifter is designed to keep up with your creativity.

Specifications

• AD Conversion: 24-bit + Adaptive Focus method (improves S/N ratio)
• DA Conversion: 32-bit
• Sampling Frequency: 48 kHz
• Memories: 30 presets

Input/Output

• Nominal Input Level: –10 dBu
• Maximum Input Level: +7 dBu
• Input Impedance: 2.2 MΩ
• Nominal Output Level: –10 dBu
• Maximum Output Level: +7 dBu
• Output Impedance: 1 kΩ
• Recommended Load Impedance: 10 kΩ or greater
• Bypass: Buffered bypass

Controls & Display

• EFFECT switch, TUNE DOWN switch, SELECT knob, EFFECT button, MEMORY button, EXP1 pedal
• Display: Graphic LCD (64 × 32 dots, backlit)

Connectors

• Input: 1/4”
• Thru: 1/4”
• Outputs: 1/4”
• CTL1,2/EXP2: 1/4” TRS
• USB-C port
• MIDI In/Out: Stereo mini-jack
• DC IN jack

Power & Performance

• Power Supply: AC adaptor (included)
• Current Draw: 160 mA
• Power Consumption (off mode): 0.1 W
• Dimensions: 147 × 230 × 72 mm (5-13/16” × 9-1/16” × 3-13/16”)
• Max Height: 96 mm (3-13/16”)
• Weight: 1.7 kg (3 lbs 12 oz)

Included Accessories

• AC adaptor
• Safety/info leaflet
• 4 × rubber feet

Optional Accessories (sold separately)

• Footswitch: FS-5U
• Dual Footswitch: FS-6, FS-7
• Expression Pedals: EV-30, FV-500L, FV-500H, EV-5