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U 47

Neumann U 47
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Description

The U 47 used the M 7 capsule originally developed for the CMV 3 microphone ("Neumann bottle"). Its PVC membranes unfortunately tended to dry out with age, however, and in 1960 the M 7 was superseded by the K 49, a capsule with similar acoustical design but membranes made of age-resistant biaxially oriented PET film. The U 47's circuitry was based on the Telefunken VF 14 M vacuum tube, the discontinuation of the U 47 was caused primarily by the decision by Telefunken to halt production of the VF 14. In some ways the functional successor to the U 47 was the U 67.

Custom tubes equivalent to the VF14 have been manufactured specifically for the U 47, by Telefunken and others. Beginning in 1962, Neumann offered a fully functional Nuvistor, small signal receiving tube replacement kit for the VF14 and required minor circuit modification.

The U 47 is well known for its clear sound, with a distinct emphasis in its upper-midrange frequency response. It has been used in countless famous recordings. The Beatles' producer George Martin used the U 47 extensively in the group's recordings and claimed it was his favorite microphone.

The U 48 was identical to the U 47 except for the available polar pattern combinations (cardioid and figure of eight instead of cardioid and omnidirectional). According to Neumann: The Microphone Company. by Anselm Roessler, the U 48 was not introduced by Neumann until 1957. However, according to representatives at Georg Neumann GmbH, examples of the U48 existed as early as 1950.

The U 47 fet, a solid-state microphone with yet a third capsule, the K 47, had a headgrille identical to that of the original U 47 but with solid-state circuitry; it was produced by Neumann during the years 1969-1986. It was intended to recapture the sound of the original U 47, but enjoyed only limited success. However, the U 47fet became well known among recording engineers as a bass drum mic. If used on the outside of the bass drum (or bass drum head if there was no hole cut in the bass drum head), and in conjunction with a primary bass drum microphone, (which would usually be placed on the inside, or close to the inside of a bass drum or a bass drum head), mixed together would make a complete bass drum sound. The U 47fet also gained great popularity among double-bass players in the jazz world.

Discussions

So much arguing over 'clones' and 'shootouts'. how much magic dust in an old classic piece of gear?

...a thread about outboard preamps like the 1073 and the 'clones' out there. Same with mics like the U47. So I don't know if people know this, but a lot of equipment is made in China at the same factory and then badged at different price points and then released...

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Neumann U47 FET vs Telefunken U47

...some pop/alt/singer-songwriter material. I really like the vocal sound on Taylor Swift's evermore. It looks like she recorded with a Telefunken U47. Does anyone know how Neumann's U47 FET compares to Telefunken's tube condenser U47 in sound, character and vibe? Also considering Neumann M 149. TIA for any insight here!

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Hardware vocal chain? Advice me

So... Are you happy with the gear?

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