- Home /
- EFFECTS /
- Guitar Effects /
- Boss /
- Boss XS100 Poly Shifter
Shop Now
- ALL NEW LINES
- AMPLIFIERS
- BRASS INSTRUMENTS
- CABLES & LEADS
- CASES & BAGS
- DJ Equipment
- DRUM
- EFFECTS
- FOLK INSTRUMENTS
- GIFT VOUCHER
- GIFTS & CLOTHING
- GUITAR
- GUITAR & FOLK ACCESSORIES
- HOME RECORDING
- KEYBOARD
- LIVE SOUND
- MICROPHONES
- ORCHESTRAL
-
PERCUSSION
- Agogo Bells
- Bells
- Bodhrans
- Bongos
- Boomwhackers
- Cabasas
- Cajon
- Castanets
- Claves
- Didgeridoos
- Djembe
- Egg Shakers
- Finger Cymbals
- Flexitones
- Glockenspiels
- Guiros
- Handpans
- Jaw Harps
- Jingle Sticks
- Kalimba
- Maracas and Shakers
- Percussion Sets
- Rain Sticks
- Slap Sticks
- Tambourines and Tambours
- Tone Blocks
- Triangles
- Waist Drums
- Whistles
- Xylophones
- PIANO
- REEDS
-
SHEET MUSIC
- Alto Saxophone
- Australian Music
- Band and Orchestral Methods
- Bass Guitar Methods
- Bongo Methods
- Broadway Movies and Shows
- Childrens Songbooks
- Chords and Scales
- Christmas Music
- Clarinet
- Classical Piano
- Country
- Djembe Methods
- Drum Methods
- Easy Guitar
- Easy Piano
- Exam Brass and Wind
- Exam Piano
- Exam Strings
- Exam Vocal
- EZY Play
- Flute
- Guitar
- Guitar Methods
- Harmonica Methods
- Jazz and Blues Piano
- Keyboard
- Keyboard Methods
- Mandolin Methods
- Manuscript
- Pedal Steel Methods
- Piano Duets
- Piano Methods
- Piano Solo
- PVG Piano Vocal Guitar
- Recorder Methods
- Sacred and Modern Church
- Sight Reading Piano
- Singing
- TAB Guitar
- Teaching Aids
- Theory
- Tin Whistle Methods
- Trumpet
- Ukulele
- Ukulele Methods
- Violin Viola Cello Double Bass
- Weddings and Special Occasions
-
STANDS & LIGHTS
- Accessory Trays for Mic Stands
- Amp Stands
- Brass and Woodwind Stands
- Cello Stands
- Drink Holders
- Guitar Stands and Hangers
- iPad Holders
- Keyboard Stands
- Laptop Stands
- Lights for Music Stands
- Microphone Stands
- Music Stands
- Percussion Stands
- Speaker Stands & Accessories
- Ukulele Stands and Hangers
- Violin Stands and Hangers
- STRINGS
- SUNDRY INSTRUMENTS
- TUNING DEVICES
- WOODWIND
Boss XS100 Poly Shifter
Description
BOSS XS-100 Poly Shifter Guitar Effect Pedal
XS100
The XS-100 Poly Shifter redefines pedal-based pitch shifting with groundbreaking BOSS technology years in the making. Delivering natural sound, precision tracking, and deep customization options, this powerhouse expression machine transforms how you perform with pitch. Glide up or down four full octaves with the ultra-smooth pedal to infuse your music with evocative new colors. Enhance solos by triggering bold shifts with a single footswitch press. Instantly retune your instrument with drop tunings, capo simulations, and more. And with onboard memories, your favorite setups are always ready when you need them.

- Advanced pitch-shifting workstation with deep control options and an eight-octave range
- Total pitch control for guitar and bass
- Class-leading pitch shifting quality realized with new BOSS algorithms
- Clear response and natural feel that retains the fundamental sound character
- Smooth onboard pedal with integrated toe switch provides linear pitch control across +/- four octaves
- Fixed pitch settings in semitone steps across eight octaves for drop tunings, capo effects, and otherworldly tones
- Detune function (+/- 50 cents) to create rich doubling effects
- Adjustable pedal curve and response
- Fully customizable toe switch and footswitches for momentary pitch changes, instant retuning, and more
- Clear display for editing sounds and 30 memories for storing favorite setups
- Dedicated analog output that mirrors the input signal
- Connect up to two footswitches or an expression pedal for extended control
- TRS MIDI I/O for external control and sending MIDI commands with the pedal and footswitches
- USB connector for system updates
Natural Sound with Advanced BOSS Technology
In developing the XS series, BOSS engineers pioneered new methods to advance real-time pitch shifting and eliminate the tonal artifacts common in conventional designs. Powered by finely tuned algorithms and a specially selected DSP platform, the XS-100 provides balanced polyphonic performance that feels natural and musical across all playing styles, pickup positions, and pedal setups. Your instrument’s attack and tonal character are fully preserved, and even complex chords and sustained lead tones—typically a challenge for pitch shifters are reproduced with stunning clarity.

Total Pitch Control
With the XS-100 underfoot, you’re in full command of nearly any pitch effect imaginable. The responsive pedal offers linear control of four octaves up or down, and independent pitch-change speeds for each pedal direction make it easy to produce motor revving tones and other interesting effects. At the end of the pedal’s travel, you can use the integrated toe switch to introduce momentary pitch jumps with adjustable range and rise/fall time. Two footswitches are also available to bypass the pedal shift and quickly retune your instrument at fixed semitone steps across eight octaves.
Customize and Save
The XS-100 gives you the tools to shape pitch effects with precision and personality. Customize the pedal’s range for different songs or techniques and fine-tune the response curve to suit your playing style. Freely reassign the toe switch and footswitches to alternate functions. Craft rich doubling effects with the detuning option and explore many other ways to refine your sound. Once everything’s dialed in, save your setup to one of 30 memories for instant recall during live sets or studio sessions.

Integrate with Every Rig
Filled with flexible connectivity, the XS-100 flows with every performance setup. Up to two external footswitches or an expression pedal are supported, expanding your real-time control options. MIDI I/O opens the door to more advanced applications, from external MIDI control to sending MIDI commands with the pedal and footswitches. There’s also a secondary output that mirrors the input signal, providing parallel routing flexibility for sophisticated rigs.
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
- Memories: 30
- Bypass: Buffered bypass
- Controls: EFFECT switch; TUNE DOWN switch; SELECT knob; EFFECT button; MEMORY button; EXP1 pedal
- Connectors: INPUT jack: 1/4-inch phone type; THRU jack: 1/4-inch phone type; OUTPUT jacks: 1/4-inch phone type; CTL1, 2/EXP2 jack: 1/4-inch TRS phone type; USB port: USB Type-C®
MIDI (IN, OUT) connectors: Stereo miniature phone type; DC IN jack - Power Supply: AC adaptor
- Current Draw: 160 mA
- Accessories: AC adaptor; Leaflet (“USING THE UNIT SAFELY”, “IMPORTANT NOTES” and “Information”); Rubber foot x 4
- Options (sold separately): Footswitch: FS-5U
Dual footswitch: FS-6, FS-7
Expression Pedal: EV-30, FV-500L, FV-500H, Roland EV-5
MIDI/TRS connecting cable: BMIDI-5-35, BMIDI-1-35, BMIDI-2-35, BCC-1-3535, BCC-2-3535 - Dimensions: W 147 mm x D 230 mm x H 96 mm
- Weight: 1.7kg