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Pitch Shifter · Boss

Boss XS-1 Pitch Shifter

A compact pitch shifter from Boss's X Series featuring harmonist and detune modes in a small footprint. Guitar World and Premier Guitar both praised its tracking and versatility, though both noted the absence of MIDI compatibility found on larger Boss models.

  • 9V DC · center −
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The rundown

Highlights

  • Harmonist and detune modes for pitch manipulation
  • Balance dial adjusts versatility between modes
  • Buffered bypass with expression pedal support
  • Runs on standard 9V DC power or batteries
  • Made in Japan, compact at 73 x 130.2 mm

Best for

Players who need essential pitch-shifting and harmonizing effects in a space-saving format without requiring MIDI control.

Professional reviews

What the press rated it. We link to each review; read the full piece for the details.

Quick facts

Power
9V DC
Polarity
Center negative
Dimensions
73 × 130.2 mm
Status
In production

Where to buy Boss XS-1 Pitch Shifter

$199.99 lowest new price · Reverb

Current offers
SellerConditionPriceLink
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View
ReverbNew$199.99View

Prices last checked 20 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power does the XS-1 require?

The Boss XS-1 Pitch Shifter runs on a 9V DC center-negative power supply and is compatible with batteries.

Can you connect an expression pedal?

Yes, the XS-1 is expression pedal friendly.

Does the XS-1 have MIDI capability?

No, the XS-1 lacks MIDI compatibility, unlike Boss's larger XS-100 model.

What type of bypass does it use?

The XS-1 features buffered bypass.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.