- Great Painters
- Accounting
- Fundamentals of Law
- Marketing
- Shorthand
- Concept Cars
- Videogames
- The World of Sports

- Blogs
- Free Software
- Google
- My Computer

- PHP Language and Applications
- Wikipedia
- Windows Vista

- Education
- Masterpieces of English Literature
- American English

- English Dictionaries
- The English Language

- Medical Emergencies
- The Theory of Memory
- The Beatles
- Dances
- Microphones
- Musical Notation
- Music Instruments
- Batteries
- Nanotechnology
- Cosmetics
- Diets
- Vegetarianism and Veganism
- Christmas Traditions
- Animals

- Fruits And Vegetables


  1. Acoustics
  2. AKG Acoustics
  3. Audio feedback
  4. Audio level compression
  5. Audio quality measurement
  6. Audio-Technica
  7. Balanced audio connector
  8. Beyerdynamic
  9. Blumlein Pair
  10. Capacitor
  11. Carbon microphone
  12. Clipping
  13. Contact microphone
  14. Crosstalk measurement
  15. DB
  16. Decibel
  17. Directional microphone
  18. Dynamic range
  19. Earthworks
  20. Electret microphone
  21. Electrical impedance
  22. Electro-Voice
  23. Equal-loudness contour
  24. Frequency response
  25. Georg Neumann
  26. Harmonic distortion
  27. Headroom
  28. ITU-R 468 noise weighting
  29. Jecklin Disk
  30. Laser microphone
  31. Lavalier microphone
  32. Loudspeaker
  33. M-Audio
  34. Microphone
  35. Microphone array
  36. Microphone practice
  37. Microphone stand
  38. Microphonics
  39. Nevaton
  40. Noise
  41. Noise health effects
  42. Nominal impedance
  43. NOS stereo technique
  44. ORTF stereo technique
  45. Parabolic microphone
  46. Peak signal-to-noise ratio
  47. Phantom power
  48. Pop filter
  49. Positive feedback
  50. Rode
  51. Ribbon microphone
  52. Schoeps
  53. Sennheiser
  54. Shock mount
  55. Shure
  56. Shure SM58
  57. Signal-to-noise ratio
  58. Soundfield microphone
  59. Sound level meter
  60. Sound pressure
  61. Sound pressure level
  62. Total harmonic distortion
  63. U 47
  64. Wireless microphone
  65. XLR connector



This article is from:

All text is available under the terms of the GNU Free Documentation License: 

Georg Neumann

From Wikipedia, the free encyclopedia

A classic Neumann U87 microphone
A classic Neumann U87 microphone

Georg Neumann GmbH (Neumann), founded in 1928 and based in Berlin, Germany, is a prominent manufacturer of professional recording microphones. Their best-known products are condenser microphones for broadcast, live and music production purposes. For several decades Neumann was also a leading manufacturer of cutting lathes for phonograph disks, however, and they even ventured into the field of mixing desks for a while.

The company's original product was the CMV 3, the world's first commercially available condenser microphone. It was a rather large (40 cm tall, 9 cm diameter) microphone with several interchangeable capsule heads which gave it different directional patterns. Because of its shape and size, this microphone was often known as the "Neumann bottle". It is often seen in historical photographs of public events in Germany through the period of World War II.

Neumann's factory in Berlin was damaged by Allied firebombing in November, 1943. Georg Neumann relocated his company to the much smaller town of Gefell and resumed production at the beginning of the following year. At the close of the war, this province fell under Soviet control and the company eventually became a "people's corporation" (i.e. a state-run enterprise). After the reunification of Germany, the company in Gefell, which had continued to use the Neumann name, became known as Microtech Gefell.

Meanwhile, Georg Neumann re-established his company as "Georg Neumann GmbH" in one of the Allied sectors of Berlin and in 1949 began producing a new model of switchable pattern microphone, the U 47, based on the M 7 capsule of the earlier CMV 3 series. This microphone was one of the first condenser microphones to gain widespread acceptance in the recording industry worldwide.

In the United States, for example, the "sound" of the best-known crooners of the 1940s (e.g. Bing Crosby and later Elvis Presley) had utilized the ultra-smooth, rolled-off tone of RCA ribbon microphones; pop recordings in the 1950s (e.g. Frank Sinatra and later The Beatles) on the other hand were sharper, clearer, much more "present" and more "hi-fi"-sounding as the result of using condenser microphones with elevated upper-midrange response. The U 47, which was distributed worldwide under the Telefunken brand name, was also used for some early classical orchestral recordings in stereo.

Other important microphones introduced by Neumann during the immediate postwar period included the M 49 and M 50, both based on designs researched and engineered at the NWDR in Germany. The M 49 used the M 7 capsule in a configuration whose directional pattern could be remotely controlled, the first microphone to offer such a feature. The M 50 featured a small, diffuse-field equalized pressure transducer embedded in the surface of a 40 cm hard plastic sphere, which gave it increasing directionality above the midrange frequencies. The company also produced equipment for electroacoustic measurement, including calibrated measurement microphones and chart recorders.

During the period from 1953 to 1956 Neumann introduced a series of small condenser microphones (KM 53, 54 and 56) especially for use in television broadcast studios. In 1957 they introduced the SM 2 microphone, which was essentially a pair of KM 56 microphones in a single body, arranged so that their directional patterns could be controlled remotely. The SM 2 was the world's first stereo microphone.

At the end of the 1950s, the Telefunken VF 14 vacuum tube on which the circuitry of the U 47 and U 48 had been based, was discontinued, so Neumann came under pressure to develop a successor. They decided to offer all three of those two models' directional patterns in a single microphone. In the meantime, the rock-'n'-roll era had begun and some engineers were recording loud vocals with singers singing directly into microphones at very close range; when the U 47 or U 48 were used in this way, the result was considered by many engineers at the time to sound unacceptably harsh. (This could be considered ironic, since the U 47 and U 48 have a cult following today specifically for use in close-up vocals, with some engineers seeming to fancy that they are re-creating a "vintage" sound--whereas in fact, they're creating a sound quality that was specifically abhorred by the "golden ears" of the era.) The result was the U 67, a microphone with less emphasis in its upper midrange response, giving it less of a "forward" tone color.

In 1964 Neumann developed a small cardioid capsule with considerably improved off-axis linearity; it was used in the KM 64 and U 64 microphones.

In 1965 Neumann began to introduce solid-state microphones. The first model was the KTM small cardioid, later followed by the "fet 70" series--transistorized versions of small omnidirectional, cardioid and speech cardioid microphones as well as a "U 77" transistorized version of the U 67. This series used the 12 Volt A-B powering system (parallel powering or "Tonaderspeisung") as found in Nagra tape recorders, and was therefore incompatible with existing studio power supplies. However, standard two-conductor shielded cables (as were commonly used for dynamic microphones) could now be used for connecting condenser microphones as well, obviating the need for special multi-conductor cables.

In 1966 Neumann adapted the "phantom powering" method that had been used for years in certain telephone systems, so that a compatible method of powering would allow tube microphones, solid-state microphones and dynamic microphones all to be connected to the same power supplies. Eventually the "fet 80" series grew to include over a dozen models, some of which are still in production as of 2007 -- the U 87, U 89, KMR 81, KMR 82 and USM 69. The best-known models from this series were the KM 84 small diaphragm cardioid and the U 87 three-pattern, large diaphragm successor to the U 67.

In 1983 Neumann began to introduce microphones with balanced outputs but no output transformer, starting with the model TLM 170. Eventually this "fet 100" or "transformerless" series was expanded to include the KM 100 modular series of small microphones (with seven different "active capsules" for various directional patterns), the cardioid TLM 193 (using the capsule of the U 89 and TLM 170), the small-diaphragm KM 180 series, the large-diaphragm cardioid TLM 103, the variable-pattern TLM 127 and the TLM 49 cardioid vocal microphone.

Beginning in 1995 the company introduced a series of vacuum tube microphones with transformerless output circuitry: the multi-pattern M 149 Tube, the cardioid M 147 Tube, and the omnidirectional M 150 Tube (based on the classic M 50 design, with the pressure transducer mounted in the surface of a sphere inside the capsule head).

In 2003 Neumann introduced their first microphone with built-in analog-to-digital conversion, the Solution-D D-01. In 2006, the D-01 was followed with a modular, small-diaphragm series of digital microphones, KM D, based on the KM 100/180 series.

In 2005, Neumann began production of its first dynamic microphone, the BCM 705, for the broadcast industry.

Neumann was acquired by Sennheiser electronic GmbH in 1991. Production of Neumann microphones was moved into a newly-built level 100 clean factory in Wedemark, near Hannover. The company maintains its official headquarters in Berlin.

External links

  • Official website
  • Mix Online Magazine on Neumann's 75th Anniversary
Retrieved from ""