The Boss OC-2 is a highly-influential octave effect pedal that many guitarists depend on for that classic "dual octave" sound. The OC-3 picks up where the best-selling OC-2 left off, giving guitarists two brand new octave effects in addition to the original OC-2 sound—all with greater stability.
In addition to OC-2 mode, the OC-3 includes a Polyphonic Octave mode and a Drive mode with distortion. Using the Polyphonic Octave mode, octaves can now be added when playing chords—a first in a compact pedal. More aggressive sounds can be unleashed with the new Drive mode, which adds a touch of distortion to the octave sounds. The OC-3 works really well with guitars, but it also sounds great with bass! To capture the best sound, the OC-3 features a dedicated bass input, which optimizes the pedal to suit the range of a bass guitar.
This OC-3 dates to 2003, and it shows some scuffs, scratches, and general signs of use, but it functions 100% as it should! The previous owner put velcro on the bottom, and the rubber around the battery-compartment screw is cracked (see photos). The "Drive" setting produces an excellent octave fuzz sound, and the "Poly" mode introduces all sorts of new options (although it doesn't always track quite accurately... this is early-2000s technology, after all). This is a fun octave pedal!