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.
