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Uncategorized · Electro-Harmonix

Electro-Harmonix Pico Swello

The Pico Swello is a compact auto volume swell pedal that creates pad-like attack tones with adjustable rise time and optional filter control. Guitar World's reviewer rated it 4.5 out of 5, praising its small footprint, smooth operation, and versatile attack settings while suggesting a momentary footswitch option would enhance functionality.

  • 9V DC · center −
  • 100 mA
New
from $149.50
Used (asking)
from $131.56

The rundown

Highlights

  • Miniature format measuring 50.5 x 92.7 mm
  • Runs on 9V DC (100 mA) with battery compatibility
  • Adjustable rise time for controlling attack character
  • Includes optional filter for tone shaping
  • Analog circuitry in white finish

Best for

Guitarists seeking a compact volume swell pedal for creating pad-like attack effects in tight pedalboard configurations.

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
100 mA
Polarity
Center negative
Dimensions
50.5 × 92.7 mm
Status
In production

Where to buy Electro-Harmonix Pico Swello

$149.50 lowest new price · Reverb

Used listings asking $131.56–$131.56, median $131.56 (1 listing, small sample). Asking prices, not sold prices.

Current offers
SellerConditionPriceLink
ReverbUsed$131.56View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View
ReverbNew$149.50View

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

Frequently asked questions

What power does the Pico Swello require?

The Pico Swello runs on a 9V DC supply with 100 mA current draw and is center-negative.

Can the Pico Swello run on battery?

Yes, the Pico Swello is battery-compatible.

How big is the Pico Swello?

The Pico Swello measures 50.5 x 92.7 mm, making it a mini-format pedal.

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.