Shure Beta 91A Condenser Kick Drum Microphone



  • Shure


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SKU: 23293mcs Category:

Shure Beta 91A Condenser Kick Drum Microphone

The Shure Beta 91A Condenser kick Drum Microphone provides amazing quality of sound and is a great choice for studio recording or live perfomances. Recognized for their superior low handling noise and high gain feedback. Beta Microphones redefine a sensitivity and control for expert sound reinforcement.


General Description

The Shure Beta 91A is designed for use with kick drums, piano and other traditional low frequency applications. Tailored for bass-heavy environments, this microphone features a powerful low frequency response and integrated preamplifier and XLR connection for easy setup and minimal stage clutter. The Beta 91A combines superior attack and punch for studio-quality sound, even at extremely high sound pressure levels (SPLs).


  • Premier live performance microphone with Shure quality, ruggedness, and reliability
  • Uniform half-cardioid polar pattern (in the hemisphere above mounting surface) for maximum gain before feedback and rejection of off-axis sound
  • Tailored frequency response for kick drums and bass-heavy instruments
  • Wide dynamic range for use in high SPL environments
  • Two-position contour switch enhances attack and clarity
  • Integrated preamp and XLR connector reduce stage clutter and provide a quick, secure setup
  • Low profile design requires no external mounting hardware
  • Steel grille and die-cast metal construction resist wear and abuse


General Rules for Use

This table lists the most common applications and placement techniques. Keep in mind that microphone technique is largely a matter of personal taste; there is no one “correct” microphone position.

  • Aim the microphone toward the desired sound source; angle unwanted sounds toward its null point.
  • Use the fewest amount of microphones as practical to increase the Potential Acoustic Gain and prevent feedback.
  • Follow the 3 to 1 Rule by spacing each microphone by at least three times the distance to its source to reduce Phase Cancellation.
  • Place microphones as far as possible from reflective surfaces to reduce Comb Filtering.
  • When using directional microphones, work closely to the microphone for extra bass response to take advantage of Proximity Effect.
  • Avoid excessive handling to minimize pickup of mechanical noise and vibration.
  • Do not cover any part of the microphone grille, as this will adversely affect microphone performance.



Electret Condenser

Frequency Response

20 to 20,000 Hz

Polar Pattern

Half-cardioid (cardioid in hemisphere above mounting surface)

Output Impedance

150 Ω


at 1kHz,open circuit voltage

-48.5 dBV/Pa(3.8 mV[1]

Maximum SPL

1 kHz at 1% THD [2]




470 g(16.6 oz.)


Shipping Dimensions





Weight 16.6 lbs
Dimensions 11 × 6 × 5 in


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