Sennheiser Celebrates 50 Years of Wireless Microphones

January 18, 2007


Wedemark, Germany - Jan 18, 2007 - The first Sennheiser wireless mic transmitter manufactured in 1957 had a short life span because it required a tube and far too many batteries. The follow-up Sennheiser SK 1002 pocket transmitter, introduced in 1958, was considerably smaller because of the use of transistors. Around the time of its launch, Sennheiser teamed with Telefunken to create wireless microphones under the brand name Mikroport, which transmitted on two channels licensed by the German postal authorities.

More technological improvements followed. In 1962, Sennheiser introduced the SK 1004 and the first wireless microphone for amateurs, Mikroport Junior, which allowed users to listen to his own wireless transmissions live over a regular FM radio. In the late 1960s, the SK 1008, a transmitter with a plug-on microphone head, and the small MKH 124/125, an RF condenser microphone, were both used on TV shows. In the late 1970s, Sennheiser introduced its first modular rack-mount receiver, the EM 1026, which housed as many as six receiver modules.

Also in the late 1970s, Sennheiser engineered a noise reduction technology called Hi Dyn, a proprietary compander system. The technology found its first use in the SK 1012 transmitter.

In 1988, the SER 20 reporting transmitter was the first Sennheiser product to make use of new PLL synthesizer technology. In 2002, Sennheiser teamed with studio microphone expert Georg Neumann to create the SKM 5000 N, which combined a Sennheiser transmitter with a Neumann capsule and conquered concert stages around the world.

Sennheiser was established in 1945.


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