Skip to content

Boss XS-100 Poly Shifter Pitch-Shifter Pedal

by Boss
SKU XS-100
Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99
Shipping to the U.S.? Contact us for a custom quote.

Unrivaled Dynamic Pitch Expression

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.

Standard Features

  • 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.

XS-100

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.

XS-100

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.

XS-100

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.

XS-100

1 – All claims require a purchase receipt. It is the customer's responsibility to present it when making a claim.


2 – Except as stated below, in-store sales are final and items purchased may not be returned. By completing their transaction, the customer acknowledges that they have taken the item(s) in optimal condition.


3 – Guitars, basses, pedals, amplifiers, accessories, and tubes are not returnable. By paying for the item, the customer acknowledges that: (i) they inspected it and found it to be in optimal aesthetic condition without defects; and (ii) they tested it and it was functioning properly.


4 – All claims due to defects are subject to the manufacturer’s terms and conditions.


5 – Guitars, basses, pedals, and amplifiers will have a 30-day warranty. The electronics of guitars and basses will have a 90-day warranty. Guitars Boutique, at its sole discretion, will decide whether to repair, replace parts or components (with identical ones), and/or replace the item with an identical one.


6 – At the store's discretion, defective items may be exchanged for an identical item SUBJECT to the defective item being in the same condition as when it was acquired, including its original packaging with all its accessories. This will be done as store credit only. The credit does not apply to special orders or lay-away.


7 – All merchandise leaving the store will be considered as used in the future.


8 – No refunds will be given, regardless of the person.


9 – Special, clearance, or discounted items are not returnable.

Puerto Rico only.

In case of a return, the shipping cost will be deducted from the refund.

Guitars Boutique ships to PR via federal mail USPS, UVA, and iWide.

Estimated delivery time once the order has been shipped:

  • Lightweight items, less than 14 pounds are shipped via USPS.
  • Heavier items are shipped via iWide and UVA.
  • No shipments are made on Sundays.

Guitars Boutique is not responsible for delays caused by shipping companies.

  • The buyer is responsible for the care of their instrument/equipment against changes in temperature, humidity, and unstable current.
    All guitars, basses, pedals, and amplifiers will have a 30-day warranty.
  • The electronics of guitars and basses will have an extended warranty of 90 days.
  • Suppliers, who generally reserve the right to decide whether to repair, replace parts or components (with identical ones), and/or substitute the item with an identical one, at their sole discretion.
  • Exchanges, if warranted (at the store's discretion) and if the product is in optimal condition (including its packaging), are for store credit only.
  • Credits do not apply to special orders or lay-away.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare