Product typeLoudspeaker ChassisTypePANominal Diameter12 ", 304.8 mmVoice Coil2.5 ", 63.5 mmOverall diameter305.5 mmPitch Circle Diameter294.3 mmCut- out Measurement278.1 mmDiameter of fixing holes6.4 mmDepth149.35 mmNominal Impedance4 Ohm(s)Nominal Load Capacity500 Wmaximum rated load1000 WSensitivity (1 W / 1 m)93.1 dBFrequency response45 - 2300 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap9.53 mmThiele & Small ParameterFs (Resonance Frequency)52 HzRe (DC resistance)3.2 Ohm(s)Qms (mechanical quality)8.21Le (inductance of the voice coil)0.94 mHQes (electrical quality)0.47Qts (overall quality)0.44Vas (equivalent volume)63.7Mms (moving mass)53 gBL (power factor)10.9 T/mXmax (maximum displacement)4.8 mmCms (elasticity of the suspension)0.17 mm/NSd (membrane area)519.5 cm2Weight5,812 kg
