Do not confuse with Masterfonics Tracking Room, a co-owned but separate facility located at 2 Music Circle East.

US mastering, recording and mixing studios, founded in 1972 by Mack Evans in Nashville, Tennessee.
Purchased by Emerald Sound Studios in 1999.

Also appears as:
- Masterfonics Studio
- Masterfonics Mix Room
- Masterfonics Studio Six
- Masterfonics Mastering
- Masterfonics Inc.
- Masterfonics, Inc.
- Masterfonic
- Master Fonics
- Mastered Fonics
- Masterphonics
- Master Phonics
- MI-S (in runouts)

Known engineers at Masterfonics:
- Mack Evans (1972 to 1985; runouts: wmE + MI-S)
- Benny Quinn (1982 to 2006)
- Glenn Meadows (1989 to 2010, studio runner)
- Milan Bogdan (April 2005 to February 2007)
- Jim Loyd (runouts: JL + MASTERFONICS and/or MI-S)
- Tommy Dorsey (2)