头戴 表演系列.docx

Technical Specifications技术指标WBH53BHeadworn Vocal Microphone（头戴式人声麦克风）performance parameters性能参数Type:Condenser (electret bias)Frequency Response:50 to 17,000 Hz Polar Pattern ：OmnidirectionalOutput Noise (equivalent dBSPL, A-weighted):39.0 dB typical; 42.0 dB maximum Signal-to-Noise Ratio: 55 dB at 94 dB SPL Recommended Minimum Input Impedance: 20 kilohms Output Level, open circuit, ref. 1v/Pa at 1 kHz:-54.0 +/- 3.0dB2.0mV Maximum Sound Pressure Level: 142 dBSPL at 1% THD/20 kilohm load Dynamic Range: 103 dB (max. SPL with 20k load, minus typical A-wt. noise) Current Drain: 60-130 microA (Microphone only)Output Polarity: Positive pressure on the Diaphragm produces a positive Voltage at: Pin 3 (black lead) relative to pin 1 (shield lead) at the output connector of the Microphone Power Requirements: +5 Vdc on pin 2, return on pin 1 (Ground) Net Weight: 35.35 g (1.25 oz.) Microphone only Cable: 1.5 m (5 ft.), small-diameter, shielded, with mini 4-pin connector (TA4F)类型：电容（电介质偏压）频率响应：50 至 17,000 Hz拾音模式：全指向型输出噪音（等效分贝声压级，A计权）:?39dB标准，最大42dB信噪比:?94dB声压级下55dB建议最小输入阻抗：20千欧输出电平，开路电压，参考1 kHz 下为 1V/Pa：-54.0 +/- 3.0dB2.0mV最大声压级：1% 总谐波失真/20 千欧负载下为 142 dB 声压级动态范围：103 dB（20k 负载的最大声压级，减去通常的 A 权重噪声）电流损耗：60-130mA(仅话筒)极性：输出端极性振膜上的正压会产生正电压于：话筒的输出接头上的针脚 3（黑色引线）（相对于针脚 1，即屏蔽引线）电源要求：在针脚 2 上为 +5 Vdc，返回到针脚 1（接地）净重:?135.35克（4.75盎司）话筒和内置放大器电缆：1.5 m（5 英尺）、小直径、屏蔽、带有 4 针小型接头 (TA4F)Technical Specifications技术指标WBH53THeadworn Vocal Microphone（头戴式人声麦克风）performance parameters性能参数Type:Condenser (electret bias)Frequency Response:50 to 17,000 Hz Polar Pattern ：OmnidirectionalOutput Noise (equivalent dBSPL, A-weighted): 39.0 dB typical; 42.0 dB maximum Signal-to-Noise Ratio: 55 dB at 94 dB SPL Recommended Minimum Input Impedance: 20 kilohms Output Level, open circuit, ref. 1v/Pa at 1 kHz:-54.0 +/- 3.0dB2.0mV Maximum Sound Pressure Level: 142 dBSPL at 1% THD/20 kilohm load Dynamic Range: 103 dB (max. SPL with 20k load, minus typical A-wt. noise) Current Drain: 60-130 microA (Microphone only)Output Polarity: