Shure : BETA-87C
Description
The Shure Beta Microphone Series
BETA 87C premium vocal microphone delivers studio-grade performance and a smooth, extended high-end frequency response in a cardioid condenser design.
The BETA87C 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.
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.
Features
→ Premier live performance microphone with Shure quality, ruggedness, and reliability→ Uniform cardioid pick-up pattern for maximum gain before feedback and excellent rejection of off-axis sound→ Smooth, wide frequency response with slight presence rise and controlled proximity effect tailored for vocals→ Advanced cartridge shock mount system absorbs mechanical shock and minimizes handling noise→ Very low susceptibility to RF and electromagnetic hum→ Dent-resistant steel mesh grille and enamel coated metal alloy construction resist wear and abuse→ Effective built-in pop filter reduces undesirable wind and breath noiseSpecifications
| Cartridge Type | Electret Condenser |
| Frequency Response | 50 to 16,000 Hz |
| Polar Pattern | Cardioid |
| Output Impedance | 100 ohms |
| Sensitivity (at 1kHz, open circuit voltage) | -51 dBV/Pa (2 mV); 1 Pascal=94 dB SPL |
| Maximum SPL (1 kHz at 1% THD, 1k ohms load) | 139 dB |
| Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) | 70.5 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted |
| Dynamic Range (at 1 kHz, 1 k ohms load) | 117 dB |
| Clipping Level (1 kHz at 0.25% THD, 1k ohms load) | -6 dBV (0.5 V) |
| Self Noise (typical, equivalent SPL, A-weighted) | 22 dB typical |
| Hum Pickup (typical, at 60 Hz, equivalent SPL/mOe) | -5 dB |
| Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
| Weight Net | 0.207 kg (0.475 lbs) |
| Connector | Three-pin professional audio (XLR), male |
| Power Requirements | 11 to 52 Vdc phantom (1.2 mA) |