|
|
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.)
|