NEUMANN U 87 Ai
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Код:U 87 Ai
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Тегло:1.500 кг
The U 87* is probably the best known and most widely used Neumann studio microphone. It 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.
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• 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
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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/Pa1)
Rated impedance: 200 ohms
Rated load impedance : 1 kohms
Equivalent noise level, CCIR2): 26/23/25 dB1)
Equivalent noise level, A-weighted2) : 15/12/14 dB-A1)
Signal-to-noise ratio, CCIR2) (rel. 94 dB SPL) : 68/71/69 dB1)
Signal-to-noise ratio, A-weighted2) (rel. 94 dB SPL) 79/82/80 dB1)
Maximum SPL for THD 0.5%3) : 117 dB (cardioid)
Maximum SPL for THD 0.5% with preattenuation3) 127 dB
Maximum output voltage : 390 mV
Dynamic range of the microphone amplifier (A-weighted) : 105 dB
Supply voltage (P48, IEC 61938) : 48 V ± 4 V
Current consumption (P48, IEC 61938) 0.8 mA
Matching connectors: XLR3F
Weight: 500 g
Diameter: 56 mm
Length: 200 mm
