Shure celebrates 75 years of the Unidyne microphone
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Introduced in 1939, the 55 Unidyne was internationally adopted as a workhorse microphone for broadcast, public address, recording, and two-way radio applications. By the 1950s it was so well known that it was marketed as "the microphone that needs no name". And even in the 21st century, its design symbolises what many think of when they hear the word "microphone".
To this day, the 55 Unidyne - the first directional microphone to use a single dynamic element - continues to influence dynamic microphone designs across the globe. This fact was recognised by the international Institute of Ele