The OC-3 is Boss's first compact pedal with true polyphonic octave effects, letting you add rich, stable octaves even while playing chords. It features three distinct modes—Poly, Drive, and classic OC-2 emulation—giving you everything from clean sub-octaves to gritty, distorted growl. Whether you're tightening up your rhythm tone or adding thunder to your solos, this pedal delivers.

• Polyphonic mode: Adds octave effects to chords with note-range control
• Drive mode: Adds distortion to octave signals for aggressive textures
• OC-2 mode: Classic dual-octave sound—one and two octaves down
• Bass input: Automatically optimizes for bass guitar
• Stereo outputs: Mono and Direct Out for flexible routing
• Powered via 9V battery or PSA adapter
• Dimensions: 73 x 129 x 59 mm Weight: 440g

Excellent condition all around. The brown sparkle paint job is pristine and pops with a sleek, stage-ready vibe.