Electro-Harmonix has been infusing the world with circuitry for over four decades. Their products deliver an emphatic punch without compromising the integrity of the source signal. As such, they can be heard on some of the most famous recordings ever perpetrated. Some of their most notable products include the POG2 polyphonic octave generator, the XO Microsynth guitar synthesizer, and the 95000 performance loop lab. They are based in Long Island City, New York.