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Shure Beta 87A Supercardioid Condenser Microphone
The Beta 87 has consistently been a top choice of performers and audio technicians around the world due to its superb accuracy and detail, and rich vocal production. This long-standing favorite now features a new design and has been renamed the Beta 87A™. In response to user requests, Shure has redesigned this microphone by just slightly thickening the handle for a more comfortable feel when hand-held. In addition, the Beta 87A now includes the A25D break-resistant swivel adapter. The Beta 87A condenser microphone leads the field for studio-quality sound in live performance vocals. Beta 87A Microphone Features• Smooth, tailored frequency response provides detail, accuracy, and warmth for vocals• Extremely accurate supercardioid pattern at all frequencies provides the highest gain-before-feedback • 3-stage pop filter minimizes breath pop and noise • Break-resistant stand adapter • Frequency response: 50 to 18,000 HzTechnical Description • Cartridge Type: Condenser (electret bias) • Frequency Response: 50 to 20,000 Hz • Polar Pattern: Supercardioid • Output Impedance: Rated at 150 ohms (100 ohms actual ±20%) • Recommended minimum load impedance: 800 ohms • Sensitivity (at 1,000 Hz): • Open Circuit Voltage š54 dBV/Pa (2 mV) • (1 Pa = 94 dB SPL) • Clipping Level (at 1,000 Hz): • 1000 ohm Load š6 dBV (0.5 V) • Power • Maximum SPL (at 1,000 Hz): 142 dB (0.25% THD, 1000 ohm load) • Self-Noise (equivalent sound pressure level; measured with true rms voltmeter): • 25 dB typical, A-weighted • 27 dB typical, weighted per DIN 45 405 • Dynamic Range: 117 dB (maximum SPL to A-weighted noise level) • Signal-to-Noise Ratio: 69 dB at 94 dB SPL (IEC 651)* • Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 • Power: Phantom Supply Requirement 11 to 52 Vdc, positive at both pins 2 and 3 • Current Drain 1.0 to 1.2 mA • Connector: 3-pin (XLR) professional audio • Case: Aluminum construction with Blue Metallic finish, and hardened steel grille with nickel satin chrome plating • Net Weight: 200 g (7 oz.)
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