Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor Pedal in great condition, delivering classic studio-style compression for guitar or bass with smooth sustain and enhanced clarity. Simple 4-control layout—Sustain, Level, Attack, and Clipping—makes dialing in everything from subtle leveling to punchy, country snap easy. Built in a compact, rugged metal enclosure with true bypass switching, it runs on standard 9V DC pedal power for reliable, pedalboard-ready performance.