Product typeLoudspeaker ChassisTypePANominal Diameter12 ", 304.8 mmVoice Coil3.0315 ", 77 mmOverall diameter318 mmPitch Circle Diameter300 mmCut- out Measurement284 mmDiameter of fixing holes8 mmDepth153 mmNominal Impedance4 + 8 Ohm(s)Nominal Load Capacity800 WSensitivity (1 W / 1 m)95 dBFrequency response35 Hz - 2500 HzVoice Coil MaterialcopperMagnetFerriteWoofer characteristicsFs (Resonance Frequency)35 HzRe (DC resistance)5.4 Ohm(s)Weight9 kg