Boss XS-1 Poly Shifter

The XS-1 Poly Shifter delivers instant retuning in a convenient, compact footprint. Driven by advanced BOSS algorithms years in the making, this magical pedal transforms the overall pitch while maintaining your instrument’s true character. You get speedy tracking, crystal-clear response, and zero compromise in tone—whether shifting down, simulating a capo, or using extreme octave jumps for effect. The versatile XS-1 unlocks a new level of performance freedom, making tuning changes fast, fluid, and seamless.

Features

• Class-leading pitch shifting quality realized with new BOSS algorithms
• Instantly change the pitch of a guitar, bass, or other instrument
• Clear response and natural feel that retains the fundamental sound character
• Change pitch across +/- seven semitones or +/- three octaves
• Balance knob adjusts the mix between the effect and direct sound
• Detune function (+/- 20 cents) to create rich doubling effects
• Selectable pedal switch modes for toggle or momentary operation
• Connect external footswitches for quick access to up to three tuning setups, or use an expression pedal for linear pitch control
• BOSS five-year warranty

Specifications

Conversions & Audio Specs

• AD Conversion: 24 bits + AF method (Roland & BOSS proprietary Adaptive Focus method, improves S/N ratio)

• DA Conversion: 32 bits

• Sampling Frequency: 48 kHz

Input

• Nominal Input Level: -20 dBu

• Maximum Input Level: +7 dBu

• Input Impedance: 1 MΩ

Output

• Nominal Output Level: -20 dBu

• Maximum Output Level: +7 dBu

• Output Impedance: 1 kΩ

• Recommended Load Impedance: 10 kΩ or greater

Bypass

• Type: Buffered bypass

Controls

• BALANCE knob

• SHIFT knob

• PEDAL MODE switch

• SHIFT DIRECTION switch

• Pedal switch

Indicator

• CHECK indicator (also functions as battery status)

Connectors

• INPUT: 1/4" phone type

• OUTPUT: 1/4" phone type

• CTL/EXP: 1/4" TRS phone type

• DC IN jack

Power

• Power Supply: AC adaptor or 9V alkaline battery (6LR61 / 6LF22) ×1

• Current Draw: 120 mA

• Battery Life (approx.): 3 hours continuous (alkaline, may vary by conditions)

Accessories

• Leaflet (“Using the Unit Safely”, “Important Notes”, “Information”)

• Alkaline battery (9V, 6LR61 or 6LF22)

Options (Sold Separately)

• AC Adaptor: PSA series

• Footswitch: FS-5U

• Dual Footswitches: FS-6, FS-7

• Expression Pedals: EV-30, FV-500L, FV-500H, Roland EV-5

Size & Weight

• Width: 73 mm / 2-7/8"

• Depth: 129 mm / 5-1/8"

• Height: 59 mm / 2-3/8"

• Weight (incl. battery): 410 g / 15 oz