MODELTYPEW157568NMID-BASSGENERAL SPECIFICATIONSNominal Diameter380/15mm/inchRated impedance8ohmPower handing capacity400wattsSensitivity99.5dB/1w/1mFrequency RangeFs-3000HzVoice Coil Diameter75/3mm/inchVoice Coil MaterialCopperNumber of layer2Kind of layerInside/OutsideTHIELE-SMALL PARAMETERSResonance frequencyFs40HzDc resistanceRe5.8ohmMechanical factorQms3.56Electrical factorQes0.26Total factorQts0.25BL factorBL21T.MEffective Moving massMms80.2gEffective Cas air loadVas205litersEffective piston areaSd0.0855m^2MOUNTING INFORMATIONOverall Diameterφ394/φ15.51mm/inchBolt Circle Diameterφ374/φ14.72mm/inchBolt Hole Diameter8-7*10/8-0.28*0.39mm/inchMount Baffle Cut-out358/14.09mm/inchDepth169/6.65mm/inchSHIPPING INFORMATIONNet Weight (1 units)4.5kgShipping Weight (1 units)5.8kgPackage Size (1 units)425*410*210mm