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Shure Beta 91A Half-Cardioid Boundary Condenser Microphone

The Shure Beta 91A is the perfect microphone to capture mallet instruments and ambient room sounds.

SHR-BETA91A

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  • SHR-BETA91A
  • SHR-BETA91A
  • SHR-BETA91A
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Product Description for the Shure Beta 91A Half-Cardioid Boundary Condenser Microphone

The Shure Beta 91A is designed for use with kick drums, as well as other traditional low-frequency applications including piano. Featuring an updated microphone capsule, integrated preamplifier, and XLR connection, the Shure Beta 91A offers a strong low-frequency response and is specifically tailored for bass frequency applications. The Shure Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPL).

Shure Beta 91A

Uniform half-cardioid polar pattern for maximum gain-before-feedback and rejection of off-axis sound

Precision-engineered low-profile design features integrated preamplifier and XLR connector to maximize setup efficiency while minimizing stage clutter

Frequency response tailored for kick drum/low frequency applications with a wide dynamic range for use in high SPL environments

Two-position contour switch to maximize attack and clarity depending on application: select the flat response setting for natural sound in most applications or the "low-mid scoop" setting for a strong low frequency "punch" with plenty of higher frequency attack

Requires no external mounting or accessories for ease of use and storage

Furnished with zipper pouch

Features

  • Type : Electret Condenser
  • Frequency Response : 20 to 20,000 Hz
  • Polar Pattern : Half-cardioid (cardioid in hemisphere above mounting surface)
  • Impedance : 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
  • Polarity : Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
  • Weight : 470 g (16.6 oz.)
  • Frequency Contour Switch : 7 dB of attenuation centered at 400 kHz
  • Connector : Three-pin professional audio (XLR), male, balanced
  • Power Requirements : 11-52 Vdc phantom power, 5.6 mA
  • Dimensions and Weight in Packaging
  • Shipping Weight : 2 lbs
SKU SHR-BETA91A
Brand Shure
Weight 2.0000
Dimensions (WxHxD) na

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