Shure SM87A

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Beschrijving
Type | Condenser (electret bias) |
Frequency Response | 50 to 20,000 Hz |
Polar Pattern | Supercardioid |
Output Impedance | EIA rated at 150Ω (100Ω actual) |
Sensitivity (at 1 kHz, open circuit voltage) |
−52 dBV/Pa (2.4 mV) 1 Pascal=94 dB SPL |
Maximum SPL (1 kHz at 1% THD, 1kΩ load) |
140 dB |
Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) |
70 dB S/N ratio is difference between 94 dB SPL and equivalent SPL of self noise, A-weighted |
Dynamic Range (at 1 kHz, 1 kΩ load) |
116.5 dB |
Clipping Level (1 kHz at 0.25% THD, 1kΩ load) |
−6 dBV (0.5 V) |
Self Noise (typical, equivalent SPL, A-weighted) |
24 dB |
Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
Weight | Net: 0.20 kg |
Connector | Three-pin professional audio (XLR), male |
Case | Aluminum construction with steel grille and satin black finish |
Power Requirements | 11 to 52 Vdc phantom (1.2 mA) |
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