Used Keeley 4 Knob Compressor Effect Pedal

Dial in legendary squeeze and sparkle with this used Keeley 4 Knob Compressor in great condition. Featuring Sustain, Level, Attack, and Clipping controls, it delivers everything from subtle leveling to punchy, studio-style compression for guitar or bass. True bypass switching keeps your tone intact when off, while a standard 9V DC center-negative supply (or battery) powers quiet, reliable performance. A go-to pedal for tightening rhythm, enhancing lead sustain, and adding polished clarity.