GENERAL SPECIFICATIONSNominal Diameter 12InchRated Impedance8ΩPower Handling Capacity600WattsSensitivity 1W 1M93.0dBEffective Piston Diameter260mmVoice Coil Diameter 75.5 mm3 InchTHIELE-SMALL PARAMENTERS Resonance FrequencyFs61HzDC ResistanceRe5.4ΩMechanical Q FactorQms6.562Electrical Q FactorQes0.883Total Q FactorQts0.779 BL Factor BL11.259TMEffective Moving MassMms53.990grEquivalent Cas Air LoadVas50.266litersEffective Piston AreaSd0.053Half-Space Efficiency Eff1.257%Top Palte ThicknessHag10mmVoice Coil Height Hvc18mmVoice Coil Over-HungXmax10mmPHYSICAL INFORMATIONMagnetNeodymiumVoice Coil Winding MaterialCopperCone MaterialPulp PaperOverall Diameter316Lean Pipe & Pipe Rack System mmMounting Holes8 holes ∅ 298mmTotal Depth132mm