Which Los Angeles studio was the primary recording location for Metallica’s 1991 album Metallica?

One on One Recording Studios was the primary recording location for Metallica’s 1991 album Metallica.

Metallica began recording at the North Hollywood facility in October 1990. The sessions continued for months and became known for the band’s demanding work habits and frequent disagreements with producer Bob Rock. The album’s main recording environment was therefore One on One, rather than the other studios used during the project.

The band also spent about a week at Little Mountain Sound Studios in Vancouver, British Columbia. Final overdubs and mixing took place at A&M Studios in Hollywood during June and July 1991. These additional locations explain why several studios appear in discographies for the album.

One on One was an important Los Angeles recording facility used by major rock artists. For Metallica, it provided the central setting where the band developed the slower, heavier, and more streamlined sound that distinguished the album from its four predecessors.