The Beta 87C premium vocal microphone delivers studio-grade performance and a smooth, extended high-end frequency response in a cardioid condenser design. 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.
Smooth, wide frequency response with slight presence rise
Uniform cardioid polar pattern for maximum isolation
Minimum off-axis tone coloration
Low-frequency roll-off compensates for proximity effect
Three-stage pop filter minimizes breath pop and noise
Break-resistant stand adapter
Frequency response: 50 - 20,000 Hz
Condenser (electret bias)
50 to 20,000 Hz
Rated at 150 ohms (100 Ohms actual +/- 20%) Recommended minimum load impedance: 800 ohms
Sensitivity (at 1,000 Hz)
Open Circuit Voltage: -51 dBV/Pa (2 mV) (1 Pa = 94 dB SPL)
Output Clipping Level
1000 Ohm Load at 1,000 Hz: -6 dBV (0.5 V)
139 dB at 1,000 Hz (0.25% THD, 1000 Ohm load)
22 dB typical, A-weighted 24 dB typical, weighted per DIN 45 405 (equivalent sound pressure level; measured with true rms voltmeter)
117 dB (maximum SPL to A-weighted noise level)
-5 dB equivalent SPL, maximum, in a 1 mOe field (60 Hz)
72 dB at 94 dB SPL (IEC 651)* *S/N ratio is difference between 94 dB SPL and equivalent SPL of self-noise A-weighted.
Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the output connector.
Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3 Current Drain: 1.0 to 1.2 mA
Three-pin (XLR) professional audio
Aluminum construction with painted blue metallic finish, and hardened steel grille with nickel satin chrome plating