Sennheiser

History 1945 - 1955

1945

Dr. Fritz Sennheiser founds ‘Laboratorium Wennebostel’ or ‘Labor W’ (Lab W) for short. The young company manufactures tube voltmeters.

1946 Start of microphone
production with the DM 1.



1947 Lab W develops its first
microphone, the DM 2 (MD 2).



1948 The measuring equipment portfolio is extended significantly.

1949 Manufacturing of
geophysical equipment
and geophones.

 
1949 The ‘invisible’ DM 3 (MD 3) micro-phone and the first noisecompen-sated microphone, the DM 4 (MD 4).
 
1950 Lab W manufactures microphone transformers.
 


1950 Labor W shows its first mixing amplifiers and pre-amplifiers at the 1950 Consumer Electronics Fair Funkausstellung.
 
1952 Lab W adds magnetic miniature headphones (HM 11, HM 21) to its
portfolio. Miniaturization becomes key in all areas.
1953 Lab W introduces miniature transformers as used in hearing aids.

 
1953 The classic MD 21 microphone sees the light of day.
 


1954 Lab W shows the first interference tube microphone for the movie and TV industry. Its successor model, the MD 82 “telemicro-phone”, results in a major breakthrough in 1956.
 
1955

Ten years after its founding, Lab W employs a staff of 250.
The foundation to a new building complex is laid.

 

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