Shure BETA87A - Power Requirements; Specifications; Type; Frequency Response

Shure Incorporated
5/8
Power Requirements
This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with
slightly decreased headroom and sensitivity with supplies as low as 11 Vdc.
Most modern mixers provide phantom power. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.
Specifications
Type
Electret Condenser
Frequency Response
50 to 20,000 Hz
Polar Pattern
Supercardioid
Output Impedance
EIA rated at150 Ω(100 Ω actual)
Sensitivity
at 1kHz,open circuit voltage
-52.5 dBV/Pa(2 mV)
Maximum SPL
1 kHz at 1% THD,1 kΩ load
140.5 dB
Signal-to-Noise Ratio
Ref. 94 dB SPL at 1 kHz
70.5 dB
Dynamic Range
at 1kHz,1 kΩ load
117 dB
Clipping Level
1 kHz at 0.25% THD,1 kΩ load
-6 dBV (0.5 V)
Self Noise
typical,equivalent SPL, A-weighted
23.5 dB
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
[1]