Used Keeley 4 Knob Compressor Effect Pedal

The used Keeley 4 Knob Compressor offers studio-grade compression in a compact pedal, perfect for guitarists seeking smooth sustain and dynamic control. This unit is in great condition, featuring controls for Sustain, Level, Attack, and Clipping to finely shape your tone. Built in the USA with true bypass switching, it delivers quiet, transparent compression. A trusted favorite among professionals, it's ideal for elevating clean tones or tightening high-gain sounds with precision.