Product typeLoudspeaker ChassisTypePANominal Diameter18 ", 457 mmVoice Coil2.5 ", 63.5 mmOverall diameter457.2 mmPitch Circle Diameter438.2 mmCut- out Measurement420.88 mmDiameter of fixing holes7.11 mmDepth206.5 mmNominal Impedance8 Ohm(s)Nominal Load Capacity500 Wmaximum rated load1000 WSensitivity (1 W / 1 m)96 dBFrequency response37 - 250 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap9.53 mmThiele & Small ParameterFs (Resonance Frequency)28 HzRe (DC resistance)5.3 Ohm(s)Qms (mechanical quality)10.38Le (inductance of the voice coil)3.43 mHQes (electrical quality)0.33Qts (overall quality)0.32Vas (equivalent volume)493.19Mms (moving mass)128.1 gBL (power factor)18.9 T/mXmax (maximum displacement)6.7 mmCms (elasticity of the suspension)0.25 mm/NSd (membrane area)1188 cm2Weight8,662 kg
