Product Name : JW151008 Product Description : Professional Audio Speaker ; Usage For Woofer Price of product ( USD price or FOB price) : 1USD---98USD Product origin : Guangzhou P.R China Key Specifications : frame diameter: Diameter 395mm (15 in) Nominal impedance : 8 VOICE COIL DC resistance : 5.4 Nominal power handling : 580W Continuous power handling : 580W Sensitivity (SPL1W/1m) : 94+/-2 dB Frequency range : F0~2.5 kHz Voice coil diameter : 100mm (4 in) Winding material : Copper Diaphragm material : Paper Magnet material:Ferrite Special Features : Fms: 45.6Hz nref:1.97% Res: 47.7 bl: 16.1N/A Re: 5.4 spl: 94.9dB Qms : 11.22 vas: 136.4L Qse:0.63 RP: 61.1 Qts: 0.60 LP: 29.9mH Rms : 2.7kg/s cp : 541.3F Cms : 0.12mm/N le : 0.99mH mms : 105.4gr sd:918.6c? Minimum Order Size and Packgaing details : Packing : carton;for trial order MOQ : 20pcs;