ELECTRO HARMONIX Pico Swello Envelope Attack Filter

ELECTRO-HARMONIX Pico Swello Envelope Attack Filter

The Electro-Harmonix Pico Swello is a polyphonic envelope (attack) filter designed to transform the beginning of every note or chord. It's taken directly from the popular POG2 pedal and enhanced with an additional modulatable Low-Pass Filter. This effect allows you to soften the attack of your instrument, creating smooth, "floating" sounds reminiscent of string instruments or reverse effects, even when playing fast passages or arpeggios.

The main ATTACK control determines how quickly the sound reaches its maximum level – from a short softening to long, slow swell effects. The pedal also features an integrated low-pass filter (LPF) with resonance, which can be controlled via a button. The MOD knob allows you to modulate the filter's frequency up or down, giving the sound even more life and movement. The modulation time is directly linked to the "Attack" setting, ensuring the effect always remains musical.

Key Features

• POG2 Legacy: A standalone, polyphonic "Attack" effect from the POG2 model.
• Polyphony: Applicable to each note individually, making it ideal for chords.
• Filtering: Low-Pass Filter (LPF) with adjustable frequency (FREQ) and modulation (MOD).
• Resonance Modes (Filter Button):
  • Green: Filter off.
  • Orange: Low resonance.
  • Red: High resonance.
• ATTACK Control: Adjusts the speed of sound onset.
• Compactness: "Pico" sized enclosure.

Technical Specifications

• Manufacturer: Electro-Harmonix (EHX)
• Model: Pico Swello
• Type: Attack Envelope Filter
• Circuitry: Digital
• Bypass: Buffered Bypass
• Audio: Mono (1 x 1/4" Input, 1 x 1/4" Output)
• Power: 9.6VDC-200mA adapter (included)
• Current Draw: 100 mA
• Release Year: 2025
• Dimensions: 93 x 51 x 51 mm (3.65 x 2.0 x 2.0 in)

What's in the Box?

• 1 x Electro-Harmonix Pico Swello Pedal
• 1 x EHX 9.6DC-200mA Power Supply
• 1 x User Manual

Who is it for?

• Guitarists looking to achieve violin, cello, or "pedal steel" guitar effects (volume swells) without using a volume pedal.
• Ambient music creators seeking slow, atmospheric textures.
• Jazz and experimental music performers wanting unique attack filters.