Used BOSS CS3 Compressor Sustainer Effect Pedal

The BOSS CS-3 Compressor Sustainer delivers smooth sustain, tight attack, and precise tone control in one rugged stompbox. This used unit, in good condition, features standard 1/4" input and output jacks, four easy-to-use control knobs—Level, Tone, Attack, and Sustain—and runs on a 9V battery or optional AC adapter. Perfect for guitarists seeking punchy, balanced dynamics, the CS-3 keeps your sound consistent whether you’re picking clean or crushing heavy chords.