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.
From faultless octave jumps to subtle detuning, players can perform head-turning pitch effects while preserving their instrument’s natural feel and tone. Designed for effortless creative exploration, this versatile stompbox delivers instant capo functionality, drop tunings for heavy riffs, dramatic tonal shifts, and much more.
WHO’S IT FOR?
Gigging guitarists and bassists who need quick access to different tunings without the hassle of using several instruments. Ideal for players looking to instantly re-pitch their guitars, craft heavy drop-tuned riffs, and explore new creative possibilities.
KEY BENEFITS
1 PITCH PERFECTION FEATURES
- Instant retuning capability without pausing your 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
- Since it’s a natural-sounding pitch shifter, it pairs well with other effects
- Fully supports bass frequencies
- Durable design ensures stable operation for gigging
RETUNE YOUR GUITAR/BASS
- Natural pitch shifting with in a range of six octaves (three up to three down)
- Shift knob allows users to quickly select between 1-7 semitone or 1-3 octave intervals
- Detune mode adds depth and richness to your tones like doubling effect
- Shift Up function delivers convenient capo-style operation for changing key in a song or for tapping style performance
- Emulate bass instruments on guitar by shifting down one octave
- Craft harmonized solos and effects using semitone shifts
Simplicity and Ease of Use
- The Balance knob allows quick, easy adjustment between the wet and dry signals
- The Shift knob provides effortless control over the pitch shift amount
- The Shift switch toggles the pitch between up, down, or slightly detuned (±20 cents)
- The Toggle/Moment switch selects between latching the effect on/off or activating it only while the onboard footswitch is pressed
- External footswitches allow to control over two different settings, so that you can control three different tunings in total
- Expression pedal allows to control the pitch shift in real- time like dynamic pitch bending effect

KLOTZ ATJJ0600 TWINCABLE 6M
KLOTZ ATCCA0300 RCA TWINCABLE 3m.
MXR M116 FULLBORE METAL
EVANS 22 EQ4 BATTER CLEAR
TAKAMINE GJ72CE-12 NAT
EVANS 22 EMAD BATTER CLEAR
EVANS 22 EMAD RESONANT BLACK
GÖLDO FLOYD ROSE TENSION BAR BLACK
IBANEZ GSR180-BK
EVANS EC1 COATED 10 INCH
PROTECTION RACKET 2014R FLOOR TOM CASE
VIC FIRTH AMERICAN CLASSIC 5BN NYLON TIP HICKORY DRUMSTICKS
YAMAHA DTX10K-X RW ELECTRONIC DRUM KIT TEXTURED CELLULAR SILICONE PADS REAL WOOD
TAYLOR 312CE V-CLASS GRAND CONCERT
MEINL SLAPTOP CAJON WALNUT
YAMAHA B1 PM UPRIGHT PIANO POLISHED MAHOGANY 109CM
DADDARIO ACCESSORIES RESTORE PWPL01
STAGG SWR PB45 TOP WINE RED VINYL
EVANS EC2S FROSTED 18 IN.
ZOOM Q2N-4K HANDY VIDEO RECORDER
YAMAHA STAGE CUSTOM BIRCH SBP-2F5 HONEY AMBER
HOHNER SPECIAL-20 CLASSIC G-MAJOR
K&M 11900 SOUND INSULATION SHIELD
YAMAHA POWDER PAPER
HOHNER BRAVO III 80 BLACK SILENT KEY
YAMAHA YFL212 FLUTE
REMO 26 EMPEROR SMOOTH WHITE
TAYLOR 0,96 CLLOID 351 ABALONE 12 PICKS
REMO 22EMPEROR CLEAR
ELECTRO HARMONIX B9 ORGAN MACHINE 