JBL CSPM-1 寻呼话筒 JBL的商业cspm-1寻呼话筒是一个动态的近讲麦克风寻呼系统/酒吧，剧场大厅，百货，瑜伽馆，咖啡厅，餐厅，零售商店，理发店，杂货店，汽车经销商，游乐场，书店，和更多。 一个单一的电缆连接到cspm-1包含音频3导体（正，负，盾）。按PTT按钮打开麦克风，并释放PTT按钮把麦克风放。 1 PTT（按下通话）按钮 适用于1区的寻呼 适用于csm-21 1 胶囊动态 典型的2.2 mV的灵敏度/ PA（54伏） 150到15千赫频率响应 21 db-a等效噪声 极性模式定向心形 最大声压133 dB（SPL），k = 1% 530?阻抗 保护风和流行的保护：内部泡沫 The JBL Commercial CSPM-1 Paging Microphone is a dynamic close-talking microphone for paging systems in bars/pubs, theatre lobbies, department stores, yoga studios, coffee shops, restaurants, retail stores, hair salons, grocery stores, car dealerships, fairgrounds, book stores, and much more. A single cable attached to the CSPM-1 contains 3 conductors for audio (Positive, Negative, Shield). Pressing the PTT button turns the microphone on, and releasing the PTT button turns the microphone off. 1 PTT (Push-To-Talk) button Suitable for paging to 1 zone Suitable for use with CSM-21 1 Capsule Dynamic Sensitivity Typical 2.2 mV / Pa (-54 dBV) Frequency Response 150 to 15 kHz Equivalent Noise 21 dB-A Polar Pattern Directional- Cardioid Maximum SPL 133 dB (SPL), K=1% Impedance 530 ? Protection Wind and Pop-Protection: Internal foam