Product typeLoudspeaker ChassisTypePANominal Diameter12 ", 304.8 mmVoice Coil2 ", 50.8 mmOverall diameter305.5 mmPitch Circle Diameter294.3 mmCut- out Measurement278.1 mmDiameter of fixing holes6.4 mmDepth114 mmNominal Impedance8 Ohm(s)Nominal Load Capacity250 Wmaximum rated load500 WSensitivity (1 W / 1 m)97.3 dBFrequency response57 - 4600 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap7.92 mmThiele & Small ParameterFs (Resonance Frequency)47 HzRe (DC resistance)5.42 Ohm(s)Qms (mechanical quality)5.64Le (inductance of the voice coil)0.64 mHQes (electrical quality)0.52Qts (overall quality)0.48Vas (equivalent volume)121Mms (moving mass)38 gBL (power factor)10.79 T/mXmax (maximum displacement)3.5 mmCms (elasticity of the suspension)0.3 mm/NSd (membrane area)538.9 cm2Weight3,934 kg
