Used Keeley 4 Knob Compressor Effect Pedal

The used Keeley 4 Knob Compressor is in great condition and delivers studio-quality compression for guitar or bass. Featuring controls for Sustain, Level, Attack, and Clipping, it offers precise tonal shaping and dynamic control. Built with true bypass switching and high-grade components, this pedal preserves your tone while adding punch and clarity. Ideal for enhancing solos or tightening rhythm parts, it's a versatile tool for any pedalboard. Powered by a standard 9V power supply.