Used Keeley 4 Knob Compressor Effect Pedal

Get studio-smooth sustain and punchy clarity with this used Keeley 4 Knob Compressor in Excellent condition. Built around the classic Keeley compressor circuit, it features four intuitive controls—Sustain, Level, Attack, and Clipping—for everything from subtle leveling to country snap and singing lead sustain. Standard 1/4" in/out and 9V DC power make it an easy fit on any pedalboard, delivering low-noise compression with plenty of headroom and tone-preserving response.