Used Keeley 4 Knob Compressor Effect Pedal

This used Keeley 4 Knob Compressor pedal in excellent condition delivers smooth, studio-style compression for guitar and bass, adding sustain and clarity without sacrificing your tone. Simple 4-knob control set—Sustain, Level, Attack, and Clipping—makes it easy to dial in subtle leveling or punchy, country-style snap. Housed in a rugged compact stompbox with true bypass switching and standard 1/4" in/out, it runs on a 9V DC power supply for dependable pedalboard use.