Shure Beta 91A Kick Drum Microphone

 
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Shure Beta 91A Kick Drum Microphone

SKU BETA-91A
Weight 2.00 lbs
$299.00 , save 20%
$239.00
Quantity

 

This is for 1- New Shure Beta91 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, Beta 91A offers a strong low-frequency response and is specifically tailored for bass frequency applications. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPL).

 

 

Features:

Half-Cardioid Polar Pattern

Picks up the most sound from above the flat mounted microphone and sound from the sides.

 

Tailored Frequency Response

Smooth, extended response.  Tuned to accentuate specific types of instruments, or voices.

 

  • 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 

 

 

Specifications

 

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

Net: 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

 

 

Frequency and Polar Charts

 

Shure-Beta91A-freq-chart.jpg

 

 

 

Shure-Beta91A-polar-chart.jpg

 

 

 

Recommended Uses

 

Kick Drum

Piano/Organ 

 

 

 

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