Pitch shifters are convenient, useful, and everybody has one. But they don't always respect your tone, so you're not a believer. Slap the BOSS XS-1 on your pedalboard and prepare to be converted!The XS-1 Poly Shifter brings powerful, real-time pitch shifting to your board in a classic BOSS format. Using advanced BOSS algorithms refined over years of development, it shifts pitch with remarkable accuracy, preserving your instrument's tone, attack, and character. The XS-1 delivers quick tracking and natural response across chords, leads, and complex playing styles. What you put in is what you get out, slathered in cool. It’s a tool that keeps the set going. No instrument swaps, no unwanted artifacts, just instant access to the tunings and effects you need.With a pitch range of ± seven semitones and up to three octaves in either direction, the XS-1 adapts to everything from standard retuning to experimental soundscapes. The simple interface makes dialing in settings fast, with a Balance control for blending direct and shifted tones to unlock 12-string effects, parallel guitar/bass textures, or lush doubling. Flexible control options let you assign the footswitch for latching or momentary use, connect external switches for quick mode changes, or add an expression pedal to transform the XS-1 into a pitch-bending powerhouse. Compact, versatile, and sonically transparent, the future of pitch control has arrived.Boss XS-1 Poly Shifter FeaturesClass-leading pitch shifting quality realized with new BOSS algorithmsInstantly change the pitch of a guitar, bass, or other instrumentClear response and natural feel that retains the fundamental sound characterChange pitch across +/- seven semitones or +/- three octavesBalance knob adjusts the mix between the effect and direct soundDetune function (+/- 20 cents) to create rich doubling effectsSelectable pedal switch modes for toggle or momentary operationConnect external footswitches for quick access to up to three tuning setups, or use an expression pedal for linear pitch controlBOSS five-year warrantyBoss XS-1 Poly Shifter SpecificationsAD Conversion24 bits + AF methodAF 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 bitsSampling Frequency: 48 kHzNominal Input Level: -20 dBuMaximum Input Level: +7 dBuInput Impedance: 1 MΩNominal Output Level: -20 dBuMaximum Output Level: +7 dBuOutput Impedance: 1 kΩRecommended Load Impedance: 10 kΩ or greaterBypass: Buffered bypassControlsBALANCE knobSHIFT knobPEDAL MODE switchSHIFT DIRECTION switchPedal switchIndicator: CHECK indicator (Used for check battery)ConnectorsINPUT jack: 1/4-inch phone typeOUTPUT jack: 1/4-inch phone typeCTL/EXP jack: 1/4-inch TRS phone typeDC IN jackPower SupplyAC adaptorAlkaline battery (6LR61 or 6LF22, commercially available) x 1Current Draw: 120 mAExpected 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.AccessoriesLeaflet (“USING THE UNIT SAFELY”, “IMPORTANT NOTES” and “Information”)Alkaline battery (9 V, 6LR61 or 6LF22)Options (sold separately)AC adaptor: PSA seriesFootswitch: FS-5UDual footswitch: FS-6, FS-7Expression Pedal: EV-30, FV-500L, FV-500H, Roland EV-5Size and WeightWidth73 mm, 2-7/8 inchesDepth129 mm, 5-1/8 inchesHeight59 mm, 2-3/8 inchesWeight (including battery)410 g, 15 oz Boss XS-1 Poly Shifter Pitch Shifter Pedal.