Neumann U 87 Ai Studio Set Large Diaphragm Condenser Microphone for Vocal and Instrumental Recordings

Brand: Neumann

Model Number: U 87 Ai Studio Set

Product Code: QD1668

Availability: In stock

AED 13,110.14 AED 13,800.15

The Neumann U 87 Ai Studio Set is probably the best-known and most frequently used studio microphone the world over. Its smooth and refined sound is as iconic as its elegant exterior design. The U 87 Ai is the standard microphone for speech and vocals. Three polar patterns plus pad and low cut options make it adaptable to a wide range of applications.

The Neumann U 87 Ai Studio Set Condenser Microphone is a large dual-diaphragm condenser microphone. It features three directional patterns, including omnidirectional, cardioid and figure-8. These are selectable with a switch below the head grille and the window above this switch shows the symbol of the selected characteristic. 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. The low frequency response can be reduced to compensate for proximity effect.

The U 87 Ai is used as a main microphone for orchestra recordings, as a spot microphone for single instruments, and extensively as a vocal microphone for all types of music and speech.

The U 87 Ai is addressed from the front. 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, interference through subsonic and low frequencies are reduced.

The circuitry increases 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.

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).


  • Variable large diaphragm microphone
  • Pressure-gradient transducer with double membrane capsule
  • Omnidirectional, cardioid, and figure-8 characteristics
  • Switchable low frequency roll-off
  • Switchable 10 dB pre-attenuation
  • Great as a main or as a support microphone


Operating Principle

Pressure Gradient



Polar Pattern

Cardioid, Figure-8, Omnidirectional

Pattern Selection



-10 dB

Frequency Range

20 Hz to 20 kHz

Maximum SPL

117 dB SPL


200 Ohms

Load Impedance

1000 Ohms


28 mV/Pa at 1 kHz into 1 Kilohms
22 mV/Pa at 1 kHz into 1 Kilohms
20 mV/Pa at 1 kHz into 1 Kilohms

Signal-to-Noise Ratio

71 dB CCIR
69 dB CCIR
68 dB CCIR
82 dB A-Weighted
80 dB A-Weighted
79 dB A-Weighted

Equivalent Noise Level

23 dB CCIR
25 dB CCIR
26 dB CCIR
12 dB A-Weighted
14 dB A-Weighted
15 dB A-Weighted



Output Connectors (Analog)

1 x XLR 3-Pin

Operating Voltage

48 V ± 4 V

Operating Current Consumption                           

0.8 µA


5.58 x 19.99 cm


500 g

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