Transform your guitar into a synthesizer or a string section with the EHX Pico Swello. This compact pedal is inspired by the legendary "Attack" effect from the EHX POG2, delivering polyphonic volume swells for every note you play.

Unlike many "slow gear" style pedals, the Pico Swello is fully polyphonic. This means you can play complex chords and arpeggios, and each individual note will fade in smoothly, creating lush, evolving soundscapes and ambient textures.

The ATTACK control dials in the fade-in time, from a quick pluck-softening effect to long, cinematic swells. In addition, the pedal features a built-in Low-Pass Filter (LPF) with FREQ (cutoff) and MOD (modulation) controls. This allows you to shape the tone of your swells or create dynamic, envelope-filter-style auto-wah effects that respond to your playing.

Polyphonic Volume Swell: Applies a smooth volume envelope to single notes and full chords. Violin & Cello Effects: Perfect for emulating bowed strings or creating reverse-style sounds. Variable ATTACK Control: Sets the fade-in time from fast and subtle to long and dramatic. Built-in Low-Pass Filter (LPF): Shape the tone of the swell with an adjustable filter. Filter Modulation: FREQ and MOD controls create expressive, envelope-filter-style sweeps. Compact Pico Chassis: Saves precious space on your pedalboard. Buffered Bypass: High-quality bypass maintains signal strength in long effects chains.