Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition, delivering studio-grade compression in a compact stompbox. Featuring controls for Sustain, Level, Attack, and Clipping, it offers precision tone shaping for guitar and bass. Built with high-quality components, this pedal maintains your original tone while enhancing clarity and sustain. Perfect for clean tones, solos, or adding punch to rhythm parts—experience professional compression trusted by countless musicians. Runs on standard 9V power supply (not included).