Product typeLoudspeaker ChassisTypePANominal Diameter15 ", 380 mmVoice Coil3 ", 77 mmOverall diameter393 mmPitch Circle Diameter374 mmCut- out Measurement356 mmMounting holes8Diameter of fixing holes9.5 mmDepth165 mmNominal Impedance4 Ohm(s)Nominal Load Capacity400 Wmaximum rated load800 WSensitivity (1 W / 1 m)99 dBFrequency response35 - 40,000 HzVoice Coil MaterialAluminumMagnetNeodymiumThiele & Small ParameterFs (Resonance Frequency)35 HzRe (DC resistance)3.3 Ohm(s)Weight3,6 kg