Sam Phillips an impromptu session featuring the four musicians. Phillips challenged the four to achieve gold record sales, offering a free Cadillac to the first, which Carl Perkins won. The contest is commemorated in a song by the Drive-By Truckers. By the mid-1960s, Phillips rarely recorded. He built a satellite studio and opened radio stations, but the studio declined, and he sold Sun Records to Shelby Singleton in 1969. In 1977 Sam's sons, Knox and Jerry, were working with John Prine at the Phillips Recording Studio when Sam Phillips joined them to oversee recordings that were eventually included on the album "Pink
Recording studio also consideration of the physical dimensions of the room itself in order to make the room respond to sound in a desired way) and soundproofing (also to provide sonic isolation between the rooms) to prevent sound from leaving the property. A recording studio has to be soundproofed on its outer shell as well, to prevent noises from the surrounding streets and roads from being picked up by microphones. A recording studio may include additional rooms, such as a vocal booth—a small room designed for voice recording, as well as one or more extra isolation booths for loud guitar stacks and