Originally founded in 1970 by Jeff Byers and Charles Brooke as Midas Amplification, a London manufacturer of solid-state guitar amps, the company relocated near Euston Station in London, next door to Martin Audio, in 1972, and began producing the PR System modular mixer in 1974. Midas mixers were adopted by the tour sound market, and used by Clair Brothers Audio on the concert tours of Elvis Presley, Yes (band), Billy Joel, and The Beach Boys. Pink Floyd used Midas consoles on their Animals Tour in 1977 and The Wall Tour in 1979, and Frank Zappa used Midas consoles on his 1980 World Tour. Midas experienced success in the musical theatre market as well, with their consoles used for productions of Evita and Cats.