Product typeLoudspeaker ChassisTypePANominal Diameter15 ", 380 mmVoice Coil3 ", 77 mmOverall diameter393 mmPitch Circle Diameter374 mmCut- out Measurement354 mmMounting holes8Diameter of fixing holes6 mmDepth180 mmNominal Impedance8 Ohm(s)Nominal Load Capacity500 Wmaximum rated load1000 WSensitivity (1 W / 1 m)98 dBFrequency response35 - 3150 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap10.5 mmThiele & Small ParameterFs (Resonance Frequency)35 HzRe (DC resistance)5.1 Ohm(s)Qms (mechanical quality)10.7Le (inductance of the voice coil)1.4 mHQes (electrical quality)0.27Qts (overall quality)0.27Vas (equivalent volume)173.8Mms (moving mass)108 gBL (power factor)21 T/mXmax (maximum displacement)9.35 mmCms (elasticity of the suspension)0.19 mm/NSd (membrane area)800 cm2Rms (mechanical loss resistance)2.2 kg/sWeight8,4 kg