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XS100

Boss XS-100 Poly Shifter Guitar Effects Pedal XS100

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Product Information

BOSS XS-100 Poly Shifter

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.

Key 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 for 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
  • Support for up to two footswitches or an expression pedal for extended control
  • TRS MIDI I/O for external control and sending MIDI commands
  • 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 (Adaptive Focus method by Roland & BOSS for improved S/N ratio)
  • DA Conversion: 32 bits
  • Sampling Frequency: 48 kHz
  • Memories: 30

Input / Output

  • Nominal Input Level: INPUT: -10 dBu
  • Maximum Input Level: INPUT: +7 dBu
  • Input Impedance: INPUT: 2.2 MΩ
  • Nominal Output Level: OUTPUT: -10 dBu
  • Maximum Output Level: OUTPUT: +7 dBu
  • Output Impedance: 1 kΩ
  • Recommended Load Impedance: 10 kΩ or greater
  • Bypass: Buffered bypass

Controls

  • EFFECT switch
  • TUNE DOWN switch
  • SELECT knob
  • EFFECT button
  • MEMORY button
  • EXP1 pedal

Display

  • Type: Graphic LCD (64 x 32 dots, backlit)

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
  • Power Consumption (OFF mode): 0.1 W

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

Size and Weight

  • Width: 147 mm / 5-13/16 inches
  • Depth: 230 mm / 9-1/16 inches
  • Height: 72 mm / 2-7/8 inches (max. 96 mm / 3-13/16 inches)
  • Weight: 1.7 kg / 3 lbs 12 oz

Warranty

2 Years Warranty
Warranty & Support 

All products are backed by the original manufacturer’s warranty, giving you confidence that your purchase is protected. If you ever need to make a claim, the process is simple — just email us at warranty@belfieldmusic.com.au with the following info:

Name:
Invoice/Order Number:
Item:
Fault Description:
Serial Number:
Email:
Contact Number:
Address:
 
Our team will guide you through the next steps and arrange a repair, replacement, or refund where applicable. We aim to make the process quick and stress-free, so you can get back to enjoying your gear as soon as possible. 

 

Shipping Policy

All orders over $150 will be automatically eligible for FREE Shipping Australia Wide, if you order is under $150 there will be a flat rate of $10.

Belfield Music is well known for its top online customer service. We treat all online customers with the same excellent service we give to our in store customer. We will ensure that you receive all the support you need while your goods are in transit and ensure the goods arrive promptly. All of our shipments have tracking numbers available and we cover every single unit by our own shipping insurance.     

Online orders are normally processed within 1-3 business days. Once processed, your order should take between 1-8 business days to arrive depending on your location. Please note that your order may take up to 10 business days to arrive from the day you place your order. 

If it transpires that the product is out of stock due to a stock discrepancy and/or there will be a delay in shipment, we will contact you within 2 business days of placing your order and give you the option of waiting or cancelling your order. The products we advertise online should show if they are in stock or not. We do our best to keep the website stock count up to date, but there may be an occasional error.

If you wish to utilize an Express Delivery Service to receive your item, please contact us for a shipping quote before you place your order at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.           

Deliver is made during the hours from 8:00am till 5:30pm Monday to Friday. As such, please ensure you nominate an address which is capable of receiving goods during 8am and 5.30pm.  Given the restrictions on PO Box deliveries we cannot deliver larger sized items to a PO Box.

If for any reason our selected carriers don't service your area we will contact you before processing your order if this applys to you.

 

Returns Policy

If you wish to return an item which is not damaged or faulty in any way and you have simply changed your mind or made the wrong decision, you must let us know within 7 days of receiving the item.  We will not agree to refund an item because you simply changed your mind or made the wrong decision if we have not been advised of your intention within 7 days of receiving your item. Once we have provided a return authority, it is the buyer’s responsibility to return the item, at their own costs within 30 days from original purchase. If the item is returned with any damage or alteration to its original packaging, we will refund the item subject to applying a minimum 15% restocking fee.  We will not refund the costs of the initial shipping charges.

It is in Belfield Music best interests to keep our customers happy with their purchases. If you are not happy with your purchase, please talk to us first. We will always attempt to resolve any problems you may have as best we can. To contact us please email us at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.

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