Electro-Voice, often abbreviated as EV, is a professional audio equipment manufacturer based in the United States. Founded in 1927, the company has a long history of producing high-quality microphones, speakers, amplifiers, and other sound reinforcement equipment. Their products have been used in a wide range of applications, including concerts, theaters, houses of worship, and sporting events. Some of their most famous products include the RE20 and PL80 microphones, as well as the ZLX and ETX series of speakers. With their commitment to innovation, reliability, and exceptional sound quality, Electro-Voice has become a trusted name in the professional audio industry.