Used Keeley C4 4 KNOB COMPRESSOR Effect Pedal

The Used Keeley C4 4 Knob Compressor is a studio-grade guitar effects pedal in great condition, designed to deliver smooth, transparent compression for enhanced tone and sustain. Featuring four precision control knobs—Sustain, Level, Attack, and Clipping—the C4 offers extended tweakability for players seeking everything from subtle dynamic control to punchy, squashed tones. Built with high-end components and offering true bypass switching, it ensures pure signal clarity when not engaged. Known for its ultra-low noise operation, the C4 is a favorite among professionals for both live and studio use. This used unit works flawlessly and shows minimal signs of wear, making it a fantastic value for guitarists looking to upgrade their pedalboard with Keeley’s legendary compression.