Electro Harmonix Pog 2 Polyphonic Octave Generator - UsedBack in 2005, Electro Harmonix unveiled the original POG, a polyphonic octave generator that enabled guitarists to conjure everything from the surreal jangle of an 18 string guitar, to rich, thick walls of symphonic sound. The POG2 will take you even higher. Use the new attack control to fade in lush, smooth swells. Tune in the new second sub octave to reach deeper than ever before. The 2 pole resonant low pass filter now includes two additional Q