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Overdrive · Jetter

Jetter Red Square

The Red Square is a Dumble-inspired overdrive from Jetter's Gain Stage series that offers two distinct voices for American and British-style tones. Premier Guitar gave it 4.5 out of 5 stars, calling it practical and powerful.

  • 9V DC · center −
  • 50 mA
  • Analog
New
No price yet
Used (asking)
from $147

The rundown

Highlights

  • Dual-voice overdrive design inspired by Dumble amplifiers
  • Made in the USA by Jetter
  • Runs on 9V DC with 50 mA draw, battery-compatible
  • Compact size at 121.9 x 111.3 mm
  • Currently in production

Best for

Players seeking an American or British-style overdrive sound in a compact, battery-friendly pedal.

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
50 mA
Polarity
Center negative
Dimensions
121.9 × 111.3 mm
Status
In production

Where to buy Jetter Red Square

Used listings asking $147–$147, median $147 (1 listing, small sample). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$147View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power supply does the Red Square need?

The Jetter Red Square runs on a 9V DC supply with 50 mA draw and is center-negative.

Can the Red Square run on batteries?

Yes, the Jetter Red Square is battery-compatible.

What are the Red Square's dimensions?

The Jetter Red Square measures 121.9 x 111.3 mm.

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.