JBCDO 专业扬声器L1520-139-B

JBCDO 专业扬声器
L1520-139-B

是一种理想的专业扬声器。

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功能特点:

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L1520-139-B
规格(Specification)  
公称直径(Nominal diameter) 380mm.15in
标称阻抗(Nominal impedance)
额定功率(Power rating) 5OOw RMS
灵敏度(Sensitivity)(1w/1m) 98dB±2dB
频响范围(Frequency range) 43-4000Hz
音圈直径(Voice coil diameter) φ 99.5mm
磁钢尺寸(Magnet dimension) φ 220mm x 25.4mm
   
Thiele-Small 参数(Thiele-Small parameters)  
最低共振频率(Resonant frequency,Fs) 39Hz
直流音圈阻抗(Voice coil resistance ,Re)
机械系统阻尼系数(Mechanical quality factor,Qms) 5.28
电器系统阻尼系数(Electrical quality factor,Qes) 0.35
总阻尼系数(Total quality factor,Qts) 0.33
等效容积(Equivalent air volume to Cms,Vas) 228L
BI因子(BI factor,BI) 19.7N/A
   
安装信息(Mounting information)  
外径(Overall diameter) φ390mm
螺栓圆直径(Bolt circle diameter) φ 373mm
开孔直径(Baffle cutout diameter) φ 352mm
深度(Depth) 173mm
净重(Net weight) 11.6Kg

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