Neumann U87 AI MT Stereo Set
The Gold Standard
The Neumann U 87 Ai 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.
Acoustical operating principle: Pressure gradient transducer
Directional Pattern: Omnidirectional, cardioid, figure-8
Frequency Range: 20 Hz ... 20 kHz
Sensitivity at 1 kHz into 1 kohm: 20/28/22 mV/Pa ± 1 dB (Omni/cardioid/8)
Rated Impedance: 200 ohms
Rated load impedance: 1 kohms
Equivalent noise level, CCIR¹⁾: 26/23/25 dB (Omni/cardioid/8)
Equivalent noise level, A-weighted¹⁾: 15/12/14 dB-A (Omni/cardioid/8)
Maximum SPL for THD 0.5%²⁾: 117 dB (cardioid)
Maximum SPL for THD 0.5% with preattenuation²⁾: 127 dB
Signal-to-noise ratio, CCIR (re. 94 dB SPL)¹⁾: 68/71/69 dB (Omni/cardioid/8)
Signal-to-noise ratio, A-weighted (re. 94 dB SPL)¹⁾: 79/82/80 dB (Omni/cardioid/8)
Maximum output voltage: -6 dBu
Supply voltage (P48, IEC 61938): 48 V ± 4 V
Current consumption (P48, IEC 61938): 0.8 mA
Matching connector: XLR 3 F
Weight: 500 g
Diameter: 56 mm
Length: 200 mm
1) according to IEC 60268-1; CCIR-weighting acccording to CCIR 468-3, quasi peak; A-weighting according to IEC 61672-1, RMS
3) measured as equivalent el. input signal
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