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Shure BETA91A Half Cardioid Condenser Microphone

Item Condition: NEW (?)

Item SKU # shu:BETA91A

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MSRP: $299.00

PAL Price: $239.00


NEW This product is brand new with full factory warranty. We're including our 45-Day Satisfaction Guarantee to this New product, making it a no-risk purchase.


Half Cardioid Condenser Microphone


Electret Condenser

Frequency Response
20 to 20,000 Hz

Polar Pattern
Half-cardioid (cardioid in hemisphere above mounting surface)

146 Ohms

Sensitivity (at 1 kHz, open circuit voltage)
-48.5 dBV/Pa (3.8mV)
1 Pascal=94 dB SPL 

Maximum SPL (1 kHz at 1% THD)

1000 Ohm load: 151 dB, 2500 Ohm load: 155 dB

Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz)
64 dB

S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted

Dynamic Range (at 1 kHz)

1000 Ohm load: 121.5 dB

2500 Ohm load: 125.5 dB

Common Mode Rejection (20 Hz to 20 kHz)

> 55 dB Clipping Level (20Hz-20 kHz at 1% THD)

1000 Ohm load: 7.50 dBV, 2500 Ohm load: 12.5 dBV

THD of microphone preamplifier when applied input signal is equivalent to cartridge output at specified SPL

Self Noise (typical, equivalent SPL, A-weighted)

29.5 dB SPL-A

Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

Net: 470 g (16.6 oz.)

Frequency Contour Switch
7 dB of attenuation centered at 400 kHz

Three-pin professional audio (XLR), male, balanced

Power Requirements
11-52 Vdc phantom power, 5.6 mA

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