Product typeLoudspeaker ChassisTypePANominal Diameter18 ", 460 mmVoice Coil4 ", 100 mmOverall diameter460 mmPitch Circle Diameter440 mmCut- out Measurement422 mmMounting holes8Diameter of fixing holes9.5 mmDepth233 mmNominal Impedance8 Ohm(s)Nominal Load Capacity1600 Wmaximum rated load3200 WSensitivity (1 W / 1 m)95 dBFrequency response30 - 1,600 HzVoice Coil MaterialcopperMagnetNeodymiumThiele & Small ParameterFs (Resonance Frequency)29 HzRe (DC resistance)5.35 Ohm(s)Weight10,2 kg