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 mmDepth136 mmNominal Impedance16 Ohm(s)Nominal Load Capacity400 Wmaximum rated load800 WSensitivity (1 W / 1 m)99.3 dBFrequency response55 - 5000 HzVoice Coil MaterialAluminumMagnetFerriteDepth of the magnetic gap10.53 mmThiele & Small ParameterFs (Resonance Frequency)55 HzRe (DC resistance)6.3 Ohm(s)Qms (mechanical quality)5.27Le (inductance of the voice coil)0.74 mHQes (electrical quality)0.46Qts (overall quality)0.43Vas (equivalent volume)81.3Mms (moving mass)39 gBL (power factor)13.5 T/mXmax (maximum displacement)2.4 mmCms (elasticity of the suspension)0.21 mm/NSd (membrane area)519.5 cm2Weight5,623 kg
