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Shure
  • Shure Beta 91A Half Cardioid Boundary Condenser Microphone


 
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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).

Shure Beta 91A Condenser Microphone Features
  • 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
Shure Beta 91A Condenser Microphone 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: 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



 
 
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Shure Beta Microphone Cash Back Rebate (PDF)
$20 Cash Back!
Purchase a select new Shure Beta Microphone between April 1, 2013 and June 30, 2013 and receive up to $60 cash back from Shure via mail-in rebate!
Shure Beta 91A Microphone Manual2.42 MBShure Beta 91A Microphone Specification Sheet857 KB
FREE 12 month Extended WarrantyRebate OfferFree Shipping

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Brandon D - Pro Live Engineer from Orlando, FL. USA
Rating
Quality
Features
Ease of Use
Sound
Subject
Must Have for Pro Sound Engineers
Quality
Would you consider this product to be made well? How dependable?
Very well made construction, in which you should expect from Shure. The 91A is very dependable vs the older Beta 91, they made a built-in XLR plug now instead of the previous weak small adapter cable that was prone to break.
Features
What do you consider to be the best features of this product? What features would you add to this product if you could?
Its a Must for great attack on a Kick drum. As a Pro Live Sound Engineer its a Must Have
Ease of Use
How easy is this product to use? How easy is the product to use with other products? Did it take long for you to learn to use this product? Was the manual helpful? How playable do you consider this product to be?
You plug it in, Its a microphone :), Hardest part is just adjusting the your EQ settings.
Sound
How is the tone?
This is the Ideal mic to set in Kick drum to catch the higher attack to get that excellent POP out of it. Works best bith Beta52 on the Outside, this one in the inside
  • Overview
  • Specs
  • Manufacturer Info
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