Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—classic studio-style compression for smooth sustain, tighter dynamics, and enhanced clarity. Simple 4-control layout lets you dial in the perfect feel with Sustain, Level, Attack, and Clipping controls, from subtle leveling to country snap and soaring lead tones. Built in a rugged stompbox enclosure, it runs on standard 9V DC pedal power and is true bypass for a clean, unaffected signal when off.