Shure BETA91A Half Cardioid Polar Pattern Kick Drum Microphone

UPC: 042406187176
Ships in 24-48 hrs


  • Premier live performance microphone with Shure quality, ruggedness, and reliability.
  • Tailored frequency response for kick drums and bass-heavy instruments.
  • The 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.

The Shure BETA91A 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).

Kick drum microphone provides a strong low-end response and maximum gain-before-feedback due to its half-cardioid polar pattern. It features a two-position contour switch to maximize attack and clarity and a low-profile design.


Maximum SPL capability, output clipping level, and dynamic range vary with the input load impedance of the preamplifier to which you connect the microphone. Shure recommends a minimum input load impedance of 1000Ω. Most modern microphone preamplifiers meet this requirement. Higher impedance results in better performance for these specifications.


This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-61938). However, it will operate with slightly decreased headroom and sensitivity with supplies as low as 11 Vdc. Most modern mixers provide phantom power. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.

Product Specifications:

Cartridge Type:  Electret Condenser

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

Frequency Response: 20 to 20,000 Hz

Frequency Contour Switch: 7 dB of attenuation centered at 400 kHz

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

More Information
Manufacturer Part Number BETA 91A
width 4.5
length 9.25
height 3
Condition new
UPC 042406187176