Product typeLoudspeaker ChassisTypePANominal Diameter18 ", 460 mmVoice Coil4 ", 100 mmOverall diameter460 mmPitch Circle Diameter440 mmCut- out Measurement422 mmMounting holes8Diameter of fixing holes9.5 mmDepth202 mmNominal Impedance8 Ohm(s)Nominal Load Capacity1000 Wmaximum rated load2000 WSensitivity (1 W / 1 m)98 dBFrequency response38 - 2,500 HzVoice Coil MaterialAluminumMagnetNeodymiumThiele & Small ParameterFs (Resonance Frequency)38 HzRe (DC resistance)5.5 Ohm(s)Weight6,7 kg