At which Los Angeles studio did Metallica record the 1991 album Metallica, known as The Black Album?

Metallica recorded its 1991 album Metallica, known as The Black Album, at One on One Recording Studios in Los Angeles.

The recording period ran from October 1990 to June 1991, making the sessions an extensive undertaking rather than a brief album date. The facility was a Los Angeles recording complex used for major rock productions, and Metallica worked there with producer Bob Rock.

The studio should not be confused with Fantasy Studios in Berkeley, where parts of earlier Metallica projects were recorded, or with the locations associated with later albums. One on One is specifically listed as the studio for Metallica. The album's polished, large-scale sound reflects the lengthy sessions and Rock's production methods.