Shure Beta 91A Half Cardioid Boundary Condenser Microphone

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    Product Description

    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

    Product Specifications
    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

    Helpful Info about the Manufacturer
    Phone:  800-257-4873 Warranty:  2 Years
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    I love this microphone!!! Awesome! Amazing!
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    This is an amazing microphone. With it flat response throughout its frequency range (20Hz - 20KHz) it captures the attack the kick drum very well. Its made to withstand any punishment you throw at it. Handling high SPL, it is at home with the hardest of rock bands, and its just as well with soft latin music.
    MSRP: $299.00
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