Electro-Harmonix is a New York-Based company that makes high-end electronic audio processors and sells rebranded vacuum tubes. The company was founded by Mike Matthews in 1968. It is best known for a series of popular guitar effects pedals introduced in the 1970s and 1990s.
During the mid-1970s, Electro-Harmonix had established itself as a pioneer and leading manufacturer of guitar effects pedals. Electro-Harmonix was the first company to introduce, manufacture, and market affordable state-of-the-art stomp boxes for guitarist and bassists, such as the first stomp box flanger, the first analog echo/delay unit with no moving parts, the first guitar synthesizer in pedal form, and the first tube amp distortion simulator.