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Author Topic: FS: NEUMANN UM87 Ai #07022 PRO CONDENSER MICROPHONE PRICE DROP  (Read 226 times)

Robert Davis Ned

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FS: NEUMANN UM87 Ai #07022 PRO CONDENSER MICROPHONE PRICE DROP
« on: November 05, 2019, 03:31:10 am »

Hi Folks, up for your consideration is a very nice NEUMANN UM87 Ai #07022 PRO CONDENSER MICROPHONE VINTAGE BOX.

The Neumann U87 Ai condenser microphone is a large diaphragm microphone, with double diaphragm and three different directivity patterns. It has a unique frequency response and a transient response.  It is an excellent solution as a general purpose microphone in studios, stations, movies and television.

ACOUSTIC CHARACTERISTICS

The Neumann U87 Ai is oriented from the front, where it has the Neumann logo. The frequency response of the cardioid and bidirectional pattern is quite flat for frontal incident sound, even at high frequency. The microphone can be used very close to the sound source, without sounding unnatural or squeaky. By means of a high pass filter, we can attenuate the low frequency or structural noise.

Neumann U87 Ai Features:

Acoustic principle: Pressure gradient
Directional pattern: Omnidirectional, cardioid, bidirectional (figure 8)
Frequency response: 20 Hz-20 kHz
Sensitivity: 20/28/22 mV (1 kHz, 1 KOhm.) Omni / Cardioid / Fig. 8
Nominal impedance: 200 Ohms
Nominal load impedance: 1 KOhm.
Equivalent noise: 26/23/25 dB, conforming to IEC60268-1 (CCIR 468-3 weighting) Omni / Cardioid / Fig. 8
Weighted equivalent noise A: 12/15/14 dB A, conforming to IEC60268-1 (CCIR 468-3 weighting) Omni / Cardioid / Fig. 8
Signal to noise ratio: 68/71/69 dB, (re 90dBSPL) conforming to IEC60268-1 (CCIR 468-3 weighting) Omni / Cardioid / Fig. 8
Signal to noise ratio A: 79/82/80 dBA, (re 90dBSPL) conforming to IEC60268-1 (CCIR 468-3 weighting) Omni / Cardioid / Fig. 8
Maximum SPL level: 117 dB (THD <0.5%, cardioid)
Maximum SPL level with preat .: 127 dB (THD <0.5%)
Maximum output voltage: 390 mV
Dynamic range of the weighted amplifier A: 105 dBA (THD <0.5%, cardioid)
Power: Phantom 48V 4V
Current Consumption: 0.8 mV
Connector: XLR 3 pin male
Weight: 500g
Diameter: 56mm
Length: 200mm

Aking $1000 shipped from Ohio.  PM if interested.

« Last Edit: December 13, 2019, 03:44:05 pm by Robert Davis Ned »
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FS: NEUMANN UM87 Ai #07022 PRO CONDENSER MICROPHONE PRICE DROP
« on: November 05, 2019, 03:31:10 am »


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