BETA Series Vocal Condenser Microphone (Cardioid)

Excellent for touring professionals, the Beta 87C premium vocal microphone delivers studio-grade performance and a smooth, extended high-end frequency response in a cardioid condenser design.<br/><br/>The microphone adds warmth to the frequency response and creates an ideal environment for in ear personal monitoring. And its highly consistent cardioid pattern offers excellent rear rejection.<br/><br/>Vocalists who use earphone monitor systems such as Shure PSM�will appreciate how effectively the BETA 87C rejects ambient sound from the rear of the microphone.<br/><br/>Transducer Type<br/>Condenser (electret bias)<br/><br/>Frequency Response<br/>50 to 20,000 Hz<br/><br/>Polar Pattern<br/>Cardioid<br/><br/>Output Impedance<br/>Rated at 150 ohms (100 Ohms actual +/- 20%)<br/>Recommended minimum load impedance: 800 ohms<br/><br/>Sensitivity (at 1,000 Hz)<br/>Open Circuit Voltage: -51 dBV/Pa (2 mV)<br/>(1 Pa = 94 dB SPL)><br/><br/>Output Clipping Level<br/>1000 Ohm Load at 1,000 Hz: -6 dBV (0.5 V)<br/><br/>Maximum SPL<br/>139 dB at 1,000 Hz (0.25% THD, 1000 Ohm load)<br/><br/>Self-Noise<br/>22 dB typical, A-weighted<br/>24 dB typical, weighted per DIN 45 405<br/>(equivalent sound pressure level; measured with true rms voltmeter)<br/><br/>Dynamic Range<br/>117 dB (maximum SPL to A-weighted noise level)<br/><br/>Hum Sensitivity<br/>-5 dB equivalent SPL, maximum, in a 1 mOe field (60 Hz)<br/><br/>Signal-to-Noise Ratio<br/>72 dB at 94 dB SPL (IEC 651)*<br/>*S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.<br/><br/>Polarity<br/>Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the output connector.<br/><br/>Power<br/>Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3<br/>Current Drain: 1.0 to 1.2 mA<br/><br/>Connector<br/>Three-pin (XLR) professional audio<br/><br/>Case<br/>Aluminum construction with painted blue metallic finish, and hardened steel grille with nickel satin chrome plating<br/><br/>Net Weight<br/>Net: 207 grams (7.6 oz)<br/>Packaged: 565 grams (1.24 lbs)<br/><br/>Environmental Conditions<br/>Operating: -18 degrees to 60 degrees C (0 degrees to 135 degrees F)(relative humidity <90%)<br/>Storage: -29 degrees to 74 degrees C (-20 degrees to 165 degrees F) (relative humidity <80%)<br/><br/><br/>