Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition, delivering the classic Ross-style squash with studio-smooth sustain and punchy clarity for guitar or bass. Simple controls for Level, Sustain, Attack, and Clipping let you dial in everything from subtle leveling to thick, singing compression. Built in a rugged compact enclosure with true-bypass switching, standard 1/4" in/out jacks, and powered by a 9V DC center-negative supply for easy pedalboard integration.