Product typeLoudspeaker ChassisTypePANominal Diameter12 ", 304.8 mmVoice Coil2.5 ", 63.5 mmOverall diameter314.5 mmPitch Circle Diameter293.8 mmCut- out Measurement281 mmDiameter of fixing holes6.9 mmDepth158 mmNominal Impedance8 Ohm(s)Nominal Load Capacity400 Wmaximum rated load800 WSensitivity (1 W / 1 m)99.2 dBFrequency response52 - 4500 HzVoice Coil MaterialAluminumMagnetFerriteDepth of the magnetic gap9.63 mmThiele & Small ParameterFs (Resonance Frequency)51 HzRe (DC resistance)5.71 Ohm(s)Qms (mechanical quality)7.56Le (inductance of the voice coil)0.84 mHQes (electrical quality)0.37Qts (overall quality)0.35Vas (equivalent volume)81.7Mms (moving mass)48 gBL (power factor)15.3 T/mXmax (maximum displacement)4.6 mmCms (elasticity of the suspension)0.21 mm/NSd (membrane area)532.4 cm2Weight7,749 kg
