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Neumann U 87 Ai Stereo Set

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Neumann U 87 Ai Stereo Set
Colour
Microphonestudio
Number in set2
Operating principlecondenser
Specs
Microphone directivityunidirectional
bidirectional
omnidirectional
Directional patterncardioid
Rated resistance200 Ohm
Frequency range20 – 20000 Hz
Sensitivity-31 dB
Sound pressure127 dB
Signal to noise ratio71 dB
Functions and connectors
Featuresdp switching
ConnectionXLR
General
Power sourcephantom
Materialmetal
Size200x56x56 mm
Weight500 g
In boxanti-shock suspension ("spider") / 2 /
case
Added to E-Catalogmarch 2017
How to choose a microphone for streamingCondenser, dynamic, cardioid or XLR?
Information in model description is for reference purposes.
Before buying always check characteristics and configuration of product with online store manager
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Neumann U 87 Ai Condenser Microphone Stereo Set - Nickel U 87 AI-STEREO

Factory-matched stereo set includes two U 87 Ai With EA 87 in Mic Briefcase
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Neumann U 87 Ai/Z-STEREOSET Matched Pair of Large Diaphragm Multipattern C

U 87 AiNeumann's U 87 Ai presents a wide range of features and versatility that make it a highly desirable microphone. Well-known for its warm and well balanced characteristics - the U 87 Ai is a great choice for a vocal microphone for all types of music and speech. The U 87 Ai works well as a main microphone for orchestra recordings, or as spot mi... morec for single instruments, making it the most general-purpose microphone - in studios, for broadcasting, film and television.The U 87 Ai is equipped with a large dual-diaphragm capsule with three directional patterns: omnidirectional, cardioid and figure-8. These are selectable with a switch below the headgrille.A 10 dB attenuation switch is located on the rear. It enables the microphone to handle sound pressure levels up to 127 dB without distortion.Furthermore, the low frequency response can be reduced to compensate for proximity effect.Acoustic FeaturesThe U 87 Ai is addressed from the front, marked with the Neumann logo. The frequency response of the cardioid and figure-8 directional characteristics are very flat for frontal sound incidence, even in the upper frequency range. The microphone can be used very close to a sound source without the sound becoming unnaturally harsh. By means of a high-pass filter interferences through subsonic and low frequencies are reduced remarkably.Polar PatternsThe dual-diaphragm capsule is elastically mounted and protected by a large headgrille. A switch below the headgrille selects the three directional patterns: omnidirectional, cardioid and figure-8. A window above this switch shows the symbol of the selected characteristic.Electrical FeaturesThe letter A in the name indicates a more recent generation, as compared to the U 87 i microphones that were built from 1967 to 1986. Modifications apply to the electronic components of the microphone only; the capsule remained unchanged.The present-day circuitry increases the operational headroom of the U 87 Ai by supplying the bias voltages for the capsule through a reduced resistance. The result is a higher sensitivity of 10 dB for identical sound pressure levels, and an improved S/N ratio of 3 dB.Filter and AttenuationA switch located at the rear attenuates the sensitivity by 10 dB. When this switch is activated, the microphone accepts sound pressure levels up to 127 dB (equivalent to a sound pressure of 45 Pa) without distortion.An additional switch at the rear allows to change the microphone's cutoff frequency. This reduces low frequency interference directly at the input of the microphone amplifier.This setting also compensates for the unavoidable bass boost that occurs with all pressure gradient transducers when they are used at close distance (proximity effect).The cardioid characteristic maintains a smooth frequency response at a distance of 30 to 40 cm, the figure-8 characteristic even at a distance of 15 to 20 cm.ApplicationsThe U 87 Ai condenser microphone is a large diaphragm microphone with three polar patterns
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Neumann U 87 Ai Stereo Set Stereo set includes two U 87 Ai with EA 87 in M

Neumann's U 87 Ai presents a wide range of features and versatility that make it a highly desirable microphone. Well-known for its warm and well balanced characteristics - the U 87 Ai is a great choice for a vocal microphone for all types of music and speech. The U 87 Ai works well as a main microphone for orchestra recordings, or as spot mic for s... moreingle instruments, making it the most general-purpose microphone - in studios, for broadcasting, film and television.The U 87 Ai is equipped with a large dual-diaphragm capsule with three directional patterns: omnidirectional, cardioid and figure-8. These are selectable with a switch below the headgrille. A 10 dB attenuation switch is located on the rear. It enables the microphone to handle sound pressure levels up to 127 dB without distortion. Furthermore, the low frequency response can be reduced to compensate for proximity effect.The U 87 Ai is addressed from the front, marked with the Neumann logo. The frequency response of the cardioid and figure-8 directional characteristics are very flat for frontal sound incidence, even in the upper frequency range. The microphone can be used very close to a sound source without the sound becoming unnaturally harsh. By means of a high-pass filter interferences through subsonic and low frequencies are reduced remarkably. The letter A in the name indicates a more recent generation, as compared to the U 87 i microphones that were built from 1967 to 1986. Modifications apply to the electronic components of the microphone only; the capsule remained unchanged.Includes(2) U 87 Ai multipattern microphone(2) EA 87 shockmountBriefcase style microphone caseFeaturesVariable large diaphragm microphonePressure-gradient transducer with double membrane capsuleThree directional characteristics: omni, cardioid, figure-8Switchable low frequency roll-offSwitchable 10 dB pre-attenuationIdeal as main and as support microphone in the most differing recordingsituationsSpecificationsAcoustical Operating Principle: Pressure gradient transducerDirectional Pattern: Omnidirectional, cardioid, figure-8 plusFrequency Range: 20 Hz ... 20 kHzSensitivity at 1 kHz into 1 kohm: 20/28/22 mV/PaRated Impedance: 200 ohmsRated Load Impedance: 1000 ohmsEquivalent noise level, CCIR: 26/23/25 dBEquivalent noise level, A-weighted: 15/12/14 dB-AS/N ratio, CCIR (rel. 94 dB SPL): 68/71/69 dBS/N ratio, A-weighted(rel. 94 dB SPL): 79/82/80dBMaximum SPL for THD 0.5%: 117 dB (cardioid)Maximum SPL for THD 0.5% with preattenuation: 127 dBMaximum Output Voltage: 390 mVDynamic Range of the Microphone Amplifier (A-weighted): 105 dBSupply Voltage: 48 V ± 4 VCurrent Consumption: 0.8 mAMatching Connectors: 3-pin XLR-FWeight: 500 gDiameter: 56 mmLength: 200 mmAcoustical Operating Principle: Pressure gradient transducerDirectional Pattern: Omnidirectional, cardioid, figure-8 plusFrequency Range: 20 Hz ... 20 kHzSensitivity at 1 kHz into 1 kohm: 20/28/22 mV/PaRated Impedance: 200 ohmsRated Load Impedance: 1000
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