Product typeLoudspeaker ChassisTypePANominal Diameter4 ", 100 mmVoice Coil0.75 ", 19 mmOverall diameter129.5 mm / 100.5 mmPitch Circle Diameter115.26 mmCut- out Measurement91.5 mmMounting holes4Diameter of fixing holes6 mmDepth49.8 mmNominal Impedance4 Ohm(s)Nominal Load Capacity30 Wmaximum rated load60 WSensitivity (1 W / 1 m)91 dBFrequency response90 - 20,000 HzVoice Coil MaterialAluminumMagnetNeodymiumThiele & Small ParameterFs (Resonance Frequency)100 HzRe (DC resistance)3.3 Ohm(s)Weight0,27 kg