A&M Mastering Studios

Mastering studio located in Los Angeles, California, USA. Can be identified with a stamped "trumpet" logo or "A&M MASTERING" in the runouts.

Formed in 1967 by Bernie Grundman as the mastering division of A&M Studios. Long-time former chief mastering engineer was Dave Collins. Engineers known to have worked here: Arnie Acosta, Frank DeLuna, Andrew Garver, Stewart Whitmore, Patricia Sullivan and Alan Yoshida. Stephen Marcussen operated briefly from A&M in 1999 awaiting the construction of his own facility.

Also appears on releases as:
- A & M Studios
- A&M
- A&M Studios, Los Angeles
- A&M Mastering
- A&M Mastering Studio
- A&M Mastering, LA
- A&M Mastering Studio, Hollywood
- A&M, Hollywood
-A&M Studios, Hollywood, California