The Shure 55SH is a professional cardioid dynamic microphone that has been commonly used in broadcast applications since 1939. Designed by American audio products company Shure, it has been described as "iconic" in pamphlets and reviews, [1] after the Elvis stamp issued by the U.S. Postal Service in 1993. [2] It was widely adopted in radio, television, and recording studios. From the 1940s until the end of the 20th century, it maintained its popularity in the professional environment. Shure designed the Unidyne transducer in 1939 and then greatly improved it in 1959, based on research and development by Shure engineer Ernie Seeler. [3]
In 1931 Shure and engineer Ralph Glover began developing Shure's first microphone, and the following year the Model 33N two-button carbon microphone was introduced, making Shure one of only four microphone manufacturers in the US. Later on, in 1939, Shure introduced the Unidyne Model 55 microphone, The original Shure 55 Unidyne microphone was designed by engineer Ben Bauer and first produced in 1939. [4]
In 1941 the United States military contracted Shure to supply microphones during World War II, and by the following year, the T-17B was the most widely used microphone by the United States Army and Navy. Shure also manufactured throat microphones, headsets, and oxygen mask, and adopted the United States military standard for all Shure microphones. [5]
Shure began manufacturing its own products in 1932 with the introduction of the 33N two-button carbon microphone. The Model 40D, Shure's first condenser microphone, was introduced the following year, and the first in a line of crystal microphones, the Model 70, was introduced in 1935. With the introduction of the 55 Unidyne microphone in 1939, the company's offerings included carbon, condenser, crystal, and dynamic microphones. [6] Wired and wireless microphones together represent the largest category of Shure's overall business. [7]
Visually one of Shure's most iconic Unidyne series, the 55S, has been seen in use by heads of state and popular recording artists and performers from the 1940s through the late 20th century, including President John F. Kennedy, Golda Meir, Ella Fitzgerald, Benny Goodman and Frank Sinatra. The Model 55 Unidyne, or derivatives thereof, appear with Harry S. Truman in the photograph where he is holding the Chicago Tribune newspaper with the erroneous front-page headline "Dewey Defeats Truman". [8] It also appears opposite Fidel Castro on the cover of the book Cuba: The Measure of a Revolution, [9] [10] and on the cover of the January 19, 1959, issue of Life magazine. [11]
The 55S is sometimes referred to as the "Elvis mic" due to its frequent use by Elvis Presley, and is the microphone depicted with Elvis on the commemorative first-class Elvis stamp issued by the U.S. Postal Service in 1993. [2] [3] [12] In 2008, the Unidyne Model 55 microphone was inducted into the TECnology Hall of Fame, [13] and the following year, Shure released the 55SH Series II. [14]
Shure designed the 55 Unidyne as a rugged public address microphone with good audio performance. It was noted for its single-element, unidirectional design, which was smaller, less susceptible to feedback, and less sensitive to ambient noise than other microphones of the time. Several variants of the original Unidyne have been produced, most notably the 55S or "Baby Unidyne". [6] A supercardioid version, the Super 55 Deluxe Vocal Microphone, was introduced in 2009, featuring high gain before feedback and excellent off-axis rejection and further extending Unidyne's 70-plus year legacy. [15]
A microphone, colloquially called a mic, or mike, is a transducer that converts sound into an electrical signal. Microphones are used in many applications such as telephones, hearing aids, public address systems for concert halls and public events, motion picture production, live and recorded audio engineering, sound recording, two-way radios, megaphones, and radio and television broadcasting. They are also used in computers and other electronic devices, such as mobile phones, for recording sounds, speech recognition, VoIP, and other purposes, such as ultrasonic sensors or knock sensors.
The XLR connector is a type of electrical connector primarily used in professional audio, video, and stage lighting equipment. XLR connectors are cylindrical, with three to seven connector pins, and are often employed for analog balanced audio interconnections, AES3 digital audio, portable intercom, DMX512 lighting control, and for low-voltage power supply. XLR connectors are part of the international standard for dimensions, IEC 61076-2-103. The XLR connector resembles the DIN connector, but is larger, more robust and physically incompatible.
Phantom power, in the context of professional audio equipment, is DC electric power equally applied to both signal wires in balanced microphone cables, forming a phantom circuit, to operate microphones that contain active electronic circuitry. It is best known as a convenient power source for condenser microphones, though many active direct boxes also use it. The technique is also used in other applications where power supply and signal communication take place over the same wires.
Shure Inc. is an audio products corporation headquartered in the USA. It was founded by Sidney N. Shure in Chicago, Illinois, in 1925 as a supplier of radio parts kits. The company became a consumer and professional audio-electronics manufacturer of microphones, wireless microphone systems, phonograph cartridges, discussion systems, mixers, and digital signal processing. The company also manufactures listening products, including headphones, high-end earphones, and personal monitor systems.
A ribbon microphone, also known as a ribbon velocity microphone, is a type of microphone that uses a thin aluminum, duraluminum or nanofilm of electrically conductive ribbon placed between the poles of a magnet to produce a voltage by electromagnetic induction. Ribbon microphones are typically bidirectional, meaning that they pick up sounds equally well from either side of the microphone.
A boundary microphone is one or more small omnidirectional or cardioid condenser mic capsule(s) positioned near or flush with a boundary (surface) such as a floor, table, or wall. The capsule(s) are typically mounted in a flat plate or housing. The arrangement provides a directional half-space pickup pattern while delivering a relatively phase-coherent output signal.
The Shure SM58 is a professional cardioid dynamic microphone, commonly used in live vocal applications. Produced since 1966 by Shure Incorporated, it has built a reputation among musicians for its durability and sound, and is still the industry standard for live vocal performance microphones. The SM58 is the most popular live vocal microphone in the world. It is a development of the SM57 microphone, which is another industry standard for both live and recorded music. In both cases, SM stands for studio microphone.
The Shure SM57 is a low-impedance cardioid 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 for speeches by every U.S. president since its introduction in 1965. In 2004, honoring its four decades of "solid, dependable performance", it was inducted into the first-ever TEC Awards TECnology Hall of Fame.
Georg Neumann GmbH is a manufacturer of professional recording microphones. It was founded by Georg Neumann and Erich Rickmann in 1928 and is based in Berlin, Germany. Its best-known products are condenser microphones for recording, broadcast, and live music production purposes. For several decades Neumann was also a leading manufacturer of cutting lathes for phonograph disks, and even ventured into the field of mixing desks. Today Neumann also manufactures preamplifiers, studio monitors, headphones, and audio interfaces.
The Neumann U 47 is a large-diaphragm condenser microphone. It is one of the most famous studio microphones and was Neumann's first microphone after the Second World War. The original series, manufactured by Georg Neumann GmbH between 1949 and 1965, employed a tube design; early U 47s used the M 7 capsule, then replaced by the K 47 from 1958. Units produced before 1950 were distributed by Telefunken and bear the Telefunken logo.
AKG Acoustics is an acoustics engineering and manufacturing company. It was founded in 1947 by Rudolf Görike and Ernest Plass in Vienna, Austria. It is a part of Harman International Industries, a subsidiary of Samsung Electronics since 2017.
Røde Microphones, officially Freedman Electronics Pty Ltd, is an Australian audio technology company specializing in the design and manufacture of microphones, headphones, audio interfaces, and audio software. The company's product range focuses on applications such as music recording, location sound recordings, broadcast and podcasting, filmmaking, and content creation, for the consumer, producer, and professional markets.
DPA Microphones is a Danish manufacturer of condenser microphones and microphone solutions for the professional markets, owned by the Italian private equity fund, Palladio Holding S.p.A. The current CEO is Kalle Hvidt Nielsen. The company was founded in 1992 by two former employees from Brüel & Kjær - Morten Støve and Ole Brøsted Sørensen. Brüel & Kjaer had decided to close their Pro Audio department and Morten and Ole made a contract with B&K to take over sales, service and development. DPA was at that time solely supplying high end studio microphones for recording and broadcast use. In 1995 they teamed up with Dan Ingemann Jensen and Jens Jørn Stokholm from DanaBallerina and co-developed the later famous DPA 4060 and 4061 miniature condenser microphone, which quickly became the preferred microphone in the theatre world on Broadway in New York and the West End in London. The company received the prestigious King Frederik IX award at a ceremony in Fredensborg Castle.
A valve microphone is a condenser microphone which uses a valve amplifier rather than a transistor circuit.
Benjamin B. Bauer (1913–1979) was a Russian Empire-born American acoustic engineer, who worked for the Shure microphone company and produced over 100 patents. His early work in acoustics lead to the development of modern sound technology via the Uniphase Electrical Principle. This principle is the source of the Unidyne Microphone's name and functionality.
The Shure MV7 is a cardioid dynamic microphone used for podcasting and home studio applications. The MV7 was developed in 2020 by Shure as a digital audio reworking of the classic SM7B professional broadcasting microphone. The MV7 was rated the best podcasting microphone by Rolling Stone in their 2021 Audio Awards.
The Shure SM7 is a professional cardioid dynamic microphone, commonly used in broadcasting applications since 1973. Designed by Shure, it has been described as an "iconic" industry standard microphone for its focused, directional sound and its widespread adoption in radio, television and recording studios. In 2007–2008, the SM7B model became popular for professional podcasting.
The Sennheiser MD 421 is a German cardioid dynamic microphone, widely used for speech in broadcasting and for music in live concerts and the recording studio. Introduced in 1960, the internal large-diaphragm transducer element of the MD 421 is still produced unchanged by Sennheiser. The MD 421 is considered a classic, an industry standard. More than 500,000 units have been sold.
The Electro-Voice RE20 is an American professional cardioid dynamic microphone, commonly used in broadcasting applications since 1968. Designed by Electro-Voice using the company's patented Variable-D technology and a large-diaphragm element, it has been described as an industry standard "iconic" microphone for its natural sound and its wide usage in radio, television and recording studios. In 2015, the RE20 was inducted into the TEC Awards Technology Hall of Fame.
The Neumann U 87 is a poly-directional large-diaphragm condenser microphone. Originally introduced in 1967, a version of the U 87 is still produced by Georg Neumann GmbH. The U 87 became an industry standard recording microphone, a reputation that continues to endure.