Detail 01
Polyphonic attack envelope
Each note receives its own swell treatment, including notes played together in a chord.
Product detailSKU #1500000468649
Electro-HarmonixPico Swello Attack Filter Effects Pedal White
funkrock
1/15
Independent shopping perspective
The Korena take
Electro-Harmonix’s Pico Swello shapes each note’s onset with a polyphonic swell envelope, including the separate notes inside chords. ATTACK sets the transition from a quick response to a slow fade-in, and VOL adjusts the overall output level. Engage the low-pass filter to add adjustable cutoff, resonance and envelope-timed upward or downward sweeps. With its compact Pico enclosure and top-panel controls, it is a direct way to work swells and filtered movement into a pedalboard setup.
Strong match
Who this is for
- Creating individual-note swells in chords, arpeggios and fast passages.
- Building ambient pads or smooth transitions with envelope-timed filter movement.
- Pedalboards where compact enclosure size and direct top-panel adjustment matter.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
ATTACK control
It sets the swell from fast attack to a slow fade-in.
Detail 03
Filter button and FREQ/MOD controls
They engage the low-pass filter, select resonance mode, set cutoff and control sweep depth and direction.
Detail 04
Buffered analog bypass
The pedal uses buffered analog bypass.
Final check
Know before you order
- 01The included supply is 9V DC; the pedal uses a center-negative barrel connection.
- 02Its input and output are ¼-inch mono connections; the input is instrument level.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does the swell effect work on chords?
Yes. The polyphonic attack envelope applies swells to individual notes, including notes within a chord.
02What does the MOD control do?
It sets the depth and upward or downward direction of the low-pass filter sweep.
03Is a power supply included?
Yes. A center-negative 9V DC power supply is included.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Power
- 9V DC barrel jack (center-negative)
1 detailsBody & build
- Color
- White
6 detailsConnections & power
- Input Impedance
- 2.2 megaohm
- Output Impedance
- 680 ohm
- Power Requirements
- 9V DC power supply (included)
- Output
- ¼" mono
- Maximum Output Level
- +2.1 dBu
- Input
- ¼" mono (instrument level)
13 detailsOther
- Mod
- Sets the depth and direction (upward/downward) of the filter sweep
- Freq
- Adjusts cutoff frequency of the low-pass filter
- Chassis
- Compact Pico-series enclosure
- Current Draw
- 100 mA
- Resonance Modes
- Low and high
- Bypass
- Buffered analog bypass
- Envelope Modulation
- Tied to ATTACK time for expressive sweeps
- Vol
- Sets overall output volume
- Product Type
- Polyphonic attack envelope filter with modulated low-pass filter
- Filter Button
- Engages low-pass filter and selects between low and high resonance modes
- Filter Type
- Low-pass filter (LPF) with adjustable resonance
- Attack
- Adjusts swell time from fast attack to slow fade-in
- Polarity
- Center-negative
