Shure / Microphone

Shure Beta 91A-X Boundary Microphone

SKU KY-EE7C97FA4408 · Unit: piece

Features: Wide Frequency Response: Ideal for capturing a variety of audio signals with excellent clarity and detail. Low-Profile Design: Facilitates easy mounting inside of a bass drum and minimizes s

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Product description

The Shure Beta 91A-X is a versatile boundary microphone designed to excel in capturing the punch and attack of low-frequency instruments, including kick (bass) drums. It features a wide frequency response, making it ideal for a range of audio signals. 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: Net: 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