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Shure Beta 91A Boundary Condenser Kick Microphone

$22.50/night

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Description

Half-Cardioid Kick Drum Microphone
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.

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).

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. You must use a balanced microphone cable: XLR-to-XLR or XLR-to-TRS.

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

Specifications

Type: Electret Condenser
Frequency Response: 20 to 20,000 Hz
Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
Output Impedance: EIA rated at146 Ω
Sensitivity: at 1kHz,open circuit voltage -48.5 dBV/Pa(3.8 mV)[1]
Maximum SPL: 1 kHz at 1% THD[2]

2500 Ω load155  dB
1000 Ω load151  dB

Signal-To-Noise Ratio: 64.5  dB
Dynamic Range: at 1kHz

2500 Ω load125.5  dB
1000 Ω load121.5  dB

Clipping Level: 20 Hz to 20 kHz, at 1% THD

2500 Ω load12.5  dB
1000 Ω load7.5  dB

Self Noise: equivalent SPL, A-weighted, typical 29.5  dB SPL-A
Common Mode Rejection: (20  Hz to 200 kHz) ≥55  dB
Frequency Contour Switch: 7 dB of attenuation centered at 400 kHz
Power Requirements: 11–52  V DCphantom power[4], 5.4 mA
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Weight: 470 g(16.6 oz.)
Connector: Three-pin professional audio (XLR), male, balanced

Additional Information

Additional information