Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in Good condition delivers classic studio-style squeeze for guitar and bass with smooth sustain and enhanced pick attack. Simple 4-control layout lets you dial in Level, Sustain, Attack, and Clipping/Blend-style tone shaping for anything from subtle leveling to rich, punchy compression. Built in a rugged stompbox enclosure with standard 1/4" input/output and 9V DC power (center-negative), it’s an always-on upgrade for cleaner dynamics and bigger tones.