Product typeLoudspeaker ChassisTypePANominal Diameter18 ", 457.2 mmVoice Coil4 ", 101.6 mmOverall diameter457.2 mmPitch Circle Diameter438.2 mmCut- out Measurement420.9 mmDiameter of fixing holes7 mmDepth206.4 mmNominal Impedance8 Ohm(s)Nominal Load Capacity1200 Wmaximum rated load2400 WSensitivity (1 W / 1 m)95 dBFrequency response36 - 200 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap9.53 mmThiele & Small ParameterFs (Resonance Frequency)32 HzRe (DC resistance)6.19 Ohm(s)Qms (mechanical quality)10.38Le (inductance of the voice coil)4.78 mHQes (electrical quality)0.36Qts (overall quality)0.35Vas (equivalent volume)237.9Mms (moving mass)211 gBL (power factor)27 T/mXmax (maximum displacement)7.9 mmCms (elasticity of the suspension)0.12 mm/NSd (membrane area)1188 cm2Weight11,79 kg
