Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—an iconic, studio-style compression pedal that delivers smooth sustain, added clarity, and tight dynamic control for guitar or bass. Simple 4-knob layout lets you dial in Level, Sustain, Attack, and Clipping for everything from subtle leveling to punchy squish. Built in a rugged metal enclosure with true bypass switching and standard 1/4" in/out jacks, it runs on a 9V pedalboard-friendly power supply for easy integration into any rig.