Cut through the Noise with the Shure BETA 91A Half-Cardioid Condenser Kick 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).

• 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

• Cartridge Type: Electret Condenser
• Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
• Frequency Response: 20 - 20,000 Hz
• Output Impedance @ 1 kHz: 146 Ω
• Sensitivity open circuit voltage, @ 1 kHz, typical: –48.5 dBV/Pa (3.8 mV)
• Maximum SPL 1 kHz at 1% THD: 2500 Ω load 155 dB, 1000 Ω load 151 dB
• Signal-to-Noise Ratio: 64.5 dB
• Dynamic Range @ 1 kHz: 2500 Ω load 125.5 dB, 1000 Ω load 121.5 dB
• Clipping Level: 20 Hz to 20 kHz, 1% THD, 2500 Ω load 12.5 dBV, 1000 Ω load 7.5 dBV
• Self Noise equivalent SPL, A-weighted, typical: 29.5 dB SPL-A
• Common Mode Rejection: 20 Hz - 200 kHz, ≥55 dB
• Frequency Contour Switch: 7 dB of attenuation centered at 400 kHz, Connector Three-pin professional audio (XLR), male, balanced
• Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
• Power Requirements: 11–52 V DC[4] phantom power (IEC-61938), 5.4 mA
• Net Weight: 470 g (16.6 oz.)

Manufacturer: Shure
Model: BETA 91A
SKU: I252082-N-10-WHXB
UPC: 042406187176

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