Shure SM57  From Wikipedia, the free encyclopedia Jump to:
navigation, search The Shure SM57 microphone  The Shure SM57 is
a low-impedance, unidirectional, dynamic microphone made by
Shure Incorporated and commonly used in live sound reinforcement
and studio recording. It is one of the best-selling microphones
in the world. It is used extensively in amplified music and has
been used by every U.S. president since its introduction in
1965.[1] In 2004, honoring its four decades of "solid,
dependable performance", it was inducted into the first-ever TEC
Awards TECnology Hall of Fame.[1]   The origin of SM57 may be
traced to 1937, when Shure engineer Ben Bauer developed the
first single-element directional microphone, the Unidyne, which
had a cardioid pickup pattern.[1] In 1959, another Shure
engineer, Ernie Seeler, advanced the art of microphone design
significantly with the Unidyne III.[1] Seeler torture-tested the
Unidyne III during three years of research and development and
thereby, produced the SM series of