Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition—classic studio-style compression in a compact stompbox. Four easy controls (Sustain, Level, Attack, and Clipping) let you dial in everything from subtle leveling to snappy, punchy squeeze for guitar or bass. True bypass switching keeps your tone intact when off, and standard 1/4" in/out with 9V DC power makes it pedalboard-friendly. Quiet, musical, and road-ready for consistent, polished tone.