Used Keeley 4 Knob Compressor Effect Pedal

Used Keeley 4 Knob Compressor in great condition, delivering smooth, studio-style compression for guitar or bass with classic Keeley sustain and sparkle. Four intuitive controls (Sustain, Level, Attack, Clipping) let you dial in subtle leveling to punchy, squashed tones, while true bypass keeps your signal clean when off. Built in a rugged metal enclosure and powered by standard 9V DC (center-negative) or 9V battery, it’s a dependable tone-shaping staple for any pedalboard.