Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—studio-grade compression in a compact stompbox. Four intuitive controls (Sustain, Level, Attack, and Clipping) let you dial in everything from subtle leveling to punchy country snap, with added harmonic warmth when desired. Built for standard 9V DC pedalboard power and designed for low-noise operation, it delivers smooth sustain, improved note definition, and consistent dynamics for guitar or bass.