Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition, delivering smooth, studio-style compression for guitar and bass. Four controls (Sustain, Level, Attack, Clipping) make it easy to dial in subtle leveling or punchy squish with excellent clarity and low noise. Compact stompbox format with standard 1/4" input/output, true bypass switching, and 9V DC power for reliable, pedalboard-friendly performance. A classic compressor for tightening dynamics, enhancing sustain, and adding polish to any rig.