JBCDO 专业扬声器L1290-65

JBCDO 专业扬声器
L1290-65

是一种理想的专业扬声器。

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功能特点:

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L1290-65
公称直径(Nominal diameter): 300mm / 12 in 标称阻抗(Nominal impedance): 8 Ω
额定功率(Power rating): 280W RMS 灵敏度(Sensitivity)(1W/1M): 97dB±2dB
音圈直径(Voice coil dimension): φ75.5mm 磁钢尺寸(Magnet dimension): φ190×20mm 
最低共振频率(Resonant frequency,Fs): 50Hz 音圈直流阻抗(D.C. Voice coil resistance,Re):
机械系统阻尼系数(Mechanical quality factor,Qms): 2.81 电器系统阻尼系数(Electrical quality factor,Qes): 0.47
总阻尼系数(Total quality factor,Qts): 0.41 等效容积(Equivalent air volume to Cms,Vas): 76L
外径(Overall diameter): φ312mm 螺栓圆直径(Bolt circle diameter): φ298mm
开孔直径(Baffle cutout diameter): φ278 mm 深度(Depth): 135mm
净重(Net weight): 7.4Kg 频响范围(Frequency range) 38-4000Hz
磁力(BL factor ,BL) 15.4N/A     

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