TMP Pro Distribution BETA 98AMP/C 音频麦克风

The Shure Beta 98AMP is a precision-engineered miniature cardioid condenser microphone for professional sound reinforcement and studio recording. Features an integrated XLR preamplifier with a flexible gooseneck and the A75M Universal Microphone Mount for accurate placement in any configuration of toms, snares, or percussion. An extremely uniform cardioid polar pattern provides excellent gain-before-feedback, off-axis rejection of unwanted noise, and high maximum sound pressure level (SPL). Cartridge Type Electret Condenser Polar Pattern Cardioid Frequency Response 20 to 20,000 Hz Output Impedance 150 Sensitivity open circuit voltage, @ 1 kHz, typical ® 50.5 dBV\/Pa1 (2.5 mV) Maximum SPL 1 kHz at 1% THD2 2500 load: 157.5 dB SPL 1000 load: 153 dB SPL Signal-to-Noise Ratio3 63 dB Dynamic Range@ 1 kHz 2500 load: 126.5 dB 1000 load: 122 dB Clipping Level@ 1 kHz, 1% THD 2500 load: 12.5 dBV 1000 load: 7.5 dBV Self Noise equivalent SPL, A-weighted, typical 31.0 dB SPL-A Common Mode Rejection 10 to 100,000 kHz 60 dB Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 Power Requirements 11® 52 V DC4 phantom power (IEC-61938), 5.5 mA Net Weight 130 g (4.6 oz.) 1 1 Pa=94 dB SPL 2 THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL 3 S\/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted 4 All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.