Used GFI Musical Products ROSSIE ENVELOPE FILTER Pedal

Used and in good condition, the GFI Musical Products ROSSIE Envelope Filter is a versatile, compact pedal offering three distinct filter modes—Envelope, LFO, and Sample & Hold—ideal for bass and guitar players alike. Designed with an intuitive one-knob control layout and a digital core for precision and consistency, the ROSSIE provides rich, responsive filter sweeps and rhythmic modulation effects. It features true bypass switching, a mono input/output, and supports standard 9V DC center-negative power. With minor cosmetic wear from normal use, this unit functions flawlessly and is perfect for players seeking expressive, synth-like textures in a pedalboard-friendly format.