Neumann U 87 Ai mt Set Z (Matt Black) / Neumann U 87 Ai Set Z (Nickel)
Neumann U 87 Ai mt Set Z (Matt Black) / Neumann U 87 Ai Set Z (Nickel). Set includes (U 87 Ai mt, EA 87 mt / U 87 Ai, EA 87), WS 87, IC 3/25
The Neumann U 87 Ai mt Set Z comes in Matt Black colors, and the Neumann U 87 Ai Set Z is in Nickel. This is a Condenser Microphone from Neumann and it comes with a large dual-diaphragm condenser microphone. It is professionally designed featuring three directional patterns, that comes including the figure-8, cardioid and omnidirectional. These are selectable with a switch below the head grille and the window above this switch is showing the symbol of the selected characteristic. A 10 dB attenuation switch is place and can be found on the rear. It is made capable of enabling the microphone in handling the sound pressure levels up to 127 dB having no any distortion. The low frequency response is capable to be reduced for compensating for the proximity effect.
The Neumann U 87 Ai is designed to be 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 is capable to 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 Neumann U 87 Ai is addressed from the front. The frequency response of the cardioid and figure-8 directional characteristics are made very flat for frontal sound incidence, even in the upper frequency range. The microphone is capable to be used very closed to a sound source without the sound becoming unnaturally harsh.
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 is placed and can be found at the rear which is attenuating the sensitivity by 10 dB. When this switch is activated, the microphone is designed accepting the sound pressure levels up to 127 dB (equivalent to a sound pressure of 45 Pa) without distortion.
An additional switch at the rear is made allowing to change the microphone's cutoff frequency. This is reducing the low frequency interference directly at the input of the microphone amplifier. This setting also is designed compensating for the unavoidable bass boost that is occurring with all pressure gradient transducers by the time they are used at close distance (proximity effect).
The cardioid characteristic maintains a smooth frequency response at a distance of 30 to 40 cm, and the figure-8 characteristic at a distance of 15 to 20 cm.
- 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|
|Frequency Range||20 Hz to 20 kHz|
|Maximum SPL||117 dB SPL|
|Load Impedance||1000 Ohms|
|Sensitivity||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||1 x XLR 3-Pin|
|Operating Voltage||48 V ± 4 V|
|Operating Current Consumption||0.8 µA|
|Dimensions||ø: 2.2 x L: 7.87" / ø: 55.88 x L: 199.9 mm|
|Weight||1.1 lb / 500 g|