Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—an all-time favorite for studio-smooth sustain and punchy, transparent dynamics on guitar or bass. Featuring four easy controls (Sustain, Level, Attack, and Clipping) to dial in everything from subtle leveling to rich, squashed compression, it adds sparkle, clarity, and consistency to your tone. Standard 1/4" in/out, rugged stompbox design, and 9V DC power for reliable pedalboard use.