Used Keeley 4 Knob Compressor Effect Pedal

The used Keeley 4 Knob Compressor delivers studio-grade compression with impressive clarity and sustain, ideal for both guitar and bass. Featuring controls for Sustain, Level, Attack, and Clipping, this pedal offers versatile tone shaping with low noise and true bypass switching. Housed in a durable enclosure and in excellent condition, it’s a favorite among professionals for its transparent performance and dynamic response. Powered by a standard 9V DC adapter (not included).