Shure Beta 87C New Open Box
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This New "Open Box" Shure Beta 87c came in a package deal when I acquired a Shure PSM In-Ear System. We used a different model mic and have no need for this one. Included in the auction is the original Shure Beta zipper pouch and microphone clip. Items typically ship same day as payment received. Transducer Type Condenser (electret bias) Frequency Response 50 to 20,000 Hz View Larger Polar Pattern Cardioid Output Impedance 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) Maximum SPL 139 dB at 1,000 Hz (0.25% THD, 1000 Ohm load) Self-Noise 22 dB typical, A-weighted 24 dB typical, weighted per DIN 45 405 (equivalent sound pressure level; measured with true rms voltmeter) Dynamic Range 117 dB (maximum SPL to A-weighted noise level) Hum Sensitivity -5 dB equivalent SPL, maximum, in a 1 mOe field (60 Hz) Signal-to-Noise Ratio 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. Polarity Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of the output connector. Power Phantom Supply Requirement: 11 to 52 Vdc, positive at both pins 2 and 3 Current Drain:
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