Used Keeley 4 Knob Compressor Effect Pedal

Used and in excellent condition, the Keeley 4 Knob Compressor is a studio-grade effects pedal designed to deliver smooth, transparent compression with a broad dynamic range. Featuring controls for Sustain, Level, Attack, and Clipping, it offers precise tonal shaping for guitarists seeking enhanced sustain and clarity without sacrificing tone. Built around a high-fidelity OTA (Operational Transconductance Amplifier) design, this pedal preserves your natural sound while adding professional-grade warmth and punch. With rugged construction and true bypass switching, it's a dependable choice for studio or live use. Whether you're tightening up funk rhythms, adding sustain to leads, or smoothing out acoustic dynamics, the Keeley 4 Knob Compressor remains one of the most respected compressor pedals on the market.