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Neumann U 87 Ai Set Z Vocal Condenser Microphone

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Product Description

The U 87 presents a wide range of features and versatility that make it to one of the most desirable mics available. Our users are recognising the microphone immediately by its distinctive design. Well-known for its warm and well balanced characteristics - your perfect choice as vocal microphone for all types of music and speech. The usage as main microphone for orchestra recordings or as spot mic for single instruments make it the most general-purpose microphone - in studios, for broadcasting, film and television.

Our special offer includes a shock mount, windscreen, cable and a wooden jewel box.

Neumann U87Ai Microphone Features

  • Variable large diaphragm microphone
  • Pressure-gradient transducer with double membrane capsule
  • The studio microphone classic
  • Three directional characteristics: omni, cardioid, figure-8
  • Switchable low frequency roll-off
  • Switchable 10 dB pre-attenuation
  • Ideal as main and as support microphone in the most differing recording situations

Applications
The U 87 Ai condenser microphone is a large diaphragm microphone with three polar patterns and a unique frequency and transient response characteristic. Users recognize the microphone immediately by its distinctive design. It is a good choice for most general purpose applications in studios, for broadcasting, film and television. The U 87 Ai is used as a main microphone for orchestra recordings, as a spot mic for single instruments, and extensively as a vocal microphone for all types of music and speech.

Applications

  • For universal use
  • The classical studio mic for vocalists (soloists and background vocalists)
  • Announcer's mic for broadcasting, dubbing, voice-over
  • Overhead
  • Spot mic for:
    - wind instruments
    - strings (especially cello and double bass)
    - piano
    - percussion

Note: To record instruments with very high sound pressure levels Neumann recommends their mics with TLM circuitry. These are just some of the most common applications. Neumann recommends additional experimentation to gain maximum use from this microphone.

Acoustic Features
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.

Polar Patterns
The 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 Features
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.

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 Attenuation
A 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

Product Specifications
Neumann U87 Ai Specifications:
  • Acoustical operating principle: Pressure gradient transducer
  • Directional pattern: Omnidirectional, cardioid, figure-8 plus
  • Frequency range: 20 Hz - 20 kHz
  • Sensitivity at 1 kHz into 1 kohm: 20/28/22 mV/Pa*
  • Rated impedance: 200 ohms
  • Rated load impedance: 1000 ohms
  • Equivalent SPL CCIR 468-3: 26/23/25 dB*
  • Equivalent SPL DIN/IEC 651: 15/12/14 dB-A*
  • S/N ratio CCIR 468-3: 68/71/69 dB*
  • S/N ratio DIN/IEC 651: 79/82/80 dB*
  • Maximum SPL for THD 0.5%: 117 dB (cardioid)
  • Maximum SPL for THD 0.5% with preattenuation: 127 dB
  • Maximum output voltage: 390 mV
  • Dynamic range of the microphone amplifier cardioid (A-weighted): 105 dB
  • Supply voltage: 48 V ± 4 V
  • Current consumption: 0.8 mA
  • Matching connectors: XLR3F
  • Weight: 500 g
  • Diameter: 56 mm
  • Length: 200 mm


Helpful Info about the Manufacturer
Phone:  860-434-9190 Warranty:  1 Year
Krissy from Spicer, MN
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