Used Keeley 4 Knob Compressor Effect Pedal

Smooth out your tone with this used Keeley 4 Knob Compressor in great condition, a studio-grade compressor/limiter trusted by guitarists for rich sustain and balanced dynamics. Dial in the perfect feel with Sustain, Level, Attack, and Clipping controls, from subtle leveling to punchy country snap. Designed for standard instrument use, it runs on 9V DC (center-negative) and features true bypass switching for a clear, unaffected signal when off.