One on One Recording was established by Jim David, son of songwriter Hal David, in 1972, occupying a former department store in North Hollywood. The studio gained recognition for its sound quality, particularly for drums, and hosted the recording of Metallica's self-titled album, which was certified 16× platinum. The studio was also included in Metallica's 1992 documentary,
A Year and a Half in the Life of Metallica. A range of artists recorded albums at One on One Recording, including Metallica's
...And Justice for All, Testament's
The Ritual, Dream Theater's
Awake, Fiona Apple's
When The Pawn..., Kiss's
Crazy Nights and
Psycho Circus, and Alice in Chains'
Dirt. Megadeth's
Rust in Peace was mixed at the studio. In 1993, Yoshiki, leader of the band
X Japan, acquired the studio due to his interest and the inability to book recording time because of the studio's busy schedule. He transformed it into his private recording facility, later renaming it
Extasy Recording Studios. The studio underwent another change in 2012 when 17 Hertz LLC took ownership, refurbishing the facility and rebranding it as 17 Hertz Studio. ==Clients==