Shure SM87A

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)