Product typeLoudspeaker ChassisTypePANominal Diameter18 ", 457.2 mmVoice Coil4 ", 101.6 mmOverall diameter458 mmPitch Circle Diameter440 mmCut- out Measurement414 mmMounting holes8Diameter of fixing holes8.5 mmDepth237 mmNominal Impedance8 Ohm(s)Nominal Load Capacity1200 Wmaximum rated load2400 WSensitivity (1 W / 1 m)95 dBFrequency response20 - 200 HzVoice Coil MaterialcopperMagnetNeodymiumDepth of the magnetic gap12 mmThiele & Small ParameterFs (Resonance Frequency)29.7 HzRe (DC resistance)5 Ohm(s)Qms (mechanical quality)7.45Le (inductance of the voice coil)0.89 mHQes (electrical quality)0.36Qts (overall quality)0.34Vas (equivalent volume)247Mms (moving mass)24 gBL (power factor)26.2 T/mXmax (maximum displacement)± 13 mmCms (elasticity of the suspension)0.12 mm/NSd (membrane area)1213 cm2Weight9,8 kg
