Recording, mastering, and cutting studio in Basel, Switzerland. Founded in 1948.
Offering mixing, dubbing, editing and mastering.
Owner and studio manager: Max Lussi. (MLussi)
Chief engineer Franz Sutter (FS) or (SU)
Other engineers or just involved in the recording:
Pitt Linder (PL) seen as (PL ML)
Hellmuth Kolbe (HK) seen as (HK ML), (HK ML FS), (HK ML SU), (K ML)
Walter Alfred Wettler (AW) or (WA) seen as (AW ML), (AW ML SU), (AW ML FS)
Alfred Lussi (AL) seen as (AL ML SU)
Hans A. Traber (HT) seen as (HT ML FS)
Bodo Suss (BS) seen as (BS ML SU)
Alex Eugster (AE) seen as (AE ML SU)
Hugo Durandi (HD) seen as (HD ML SU)
Harald Blobel (HB) seen as (HB ML SU)
René Wicky (RW) seen as (RW ML SU)
Jürg Löffler (JL) seen as (ML/JL)

Unknown stamps/etchings:
(CM) seen as (CM ML FS)
(FIL) seen as (ML FIL), (ML FIL SU)
(HF) seen as (ML/F/HF)
(HQ) seen as (ML/HQ)
(KZ) seen as (KZ ML SU), (KZ ML FS)
(LZ) seen as (ML/LZ)
(MT) seen as (MT ML SU)
(NK) seen as (NK ML SU) could be Ernst Neukomm
(RL) seen as (ML / RL / fs)
(SZ) seen as (ML/SZ)

Renamed to "Max Lussi Tonstudio, Unterhaltungselektronik, Foto" in 1990, liquidated in 2000.