. . . . . . . "Rivera Amplifiers"@en . "1976Z"^^ . "Rivera Amplifiers is an American manufacturer of guitar amplifiers. It was founded by Paul Rivera as a research and development firm in August 1976 in Southern California.Before moving into manufacturing amplifiers under his own name, Paul Rivera ran his own amplifier repair and modification shop, and then worked for Fender Amplifiers. There he acted as Marketing Director, specifying a whole range of amplifiers and designing some himself."@en . .