Used Keeley 4 Knob Compressor Effect Pedal

The Used Keeley 4 Knob Compressor Effect Pedal in Excellent condition delivers studio-quality compression in a compact and road-ready design. Featuring controls for Sustain, Level, Attack, and Clipping, this pedal allows for precise tonal shaping, from subtle dynamic control to rich, squashed sustain. Built with high-fidelity components, it provides ultra-low noise operation and transparent performance, making it perfect for enhancing clean tones or tightening up high-gain sounds. The pedal operates on a standard 9V power supply and features true bypass switching to preserve your signal integrity. Whether you're after country-style chicken pickin’ or smooth, violin-like sustain, the Keeley 4 Knob Compressor is a must-have for any serious guitarist’s pedalboard.