PedalBro

Overdrive · MXR

MXR Fat Sugar

The MXR Fat Sugar is an overdrive pedal based on Klon-style circuitry, featuring a boost section and EQ controls alongside a Fat switch that enhances low-end response. Premier Guitar gave it 4.5 out of 5 stars, noting it delivers Klon-type tones in a compact footprint at an accessible price point.

  • 9V DC · center −
  • 25 mA
  • Analog
New
from $139.99
Used (asking)
from $74

The rundown

Highlights

  • Klon-inspired overdrive with boost and EQ controls
  • Fat switch adds low-end presence
  • Compact pedal size
  • Made in the USA
  • Runs on standard 9V DC power

Best for

Guitarists seeking Klon-style overdrive tones who prefer a space-saving pedal with additional tone-shaping options.

Professional reviews

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

Quick facts

Power
9V DC
Current draw
25 mA
Polarity
Center negative
Status
In production

Where to buy MXR Fat Sugar

$139.99 lowest new price · Reverb

Used listings asking $74–$145.39, median $99.50 (12 listings). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$74View
ReverbUsed$74View
ReverbUsed$74View
ReverbUsed$79View
ReverbUsed$79View
ReverbUsed$99View
ReverbUsed$100View
ReverbUsed$136.26View
ReverbNew$139.99View
ReverbNew$139.99View

Prices last checked 23 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What kind of power supply does the Fat Sugar need?

The MXR Fat Sugar runs on a 9V DC supply with center-negative polarity and draws 25 mA.

Is the Fat Sugar made in the USA?

Yes, the MXR Fat Sugar is made in the USA.

Can the Fat Sugar run on batteries?

Yes, the MXR Fat Sugar is compatible with 9V batteries.

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.