Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—classic studio-style compression for guitar with smooth sustain and added punch. Four simple controls (Sustain, Level, Attack, and Clipping/Blend) make it easy to dial in subtle leveling or squashed country snap. Built in a rugged stompbox enclosure with true-bypass switching and a standard 1/4" in/out layout, it runs on a 9V DC center-negative supply for easy pedalboard use.