Product typeLoudspeaker ChassisTypeGuitarsNominal Diameter12 ", 304.8 mmVoice Coil2 ", 50.8 mmOverall diameter305.3 mmPitch Circle Diameter295.4 mmCut- out Measurement278.6 mmDiameter of fixing holes6.4 mmDepth130 mmNominal Impedance8 Ohm(s)Nominal Load Capacity150 WSensitivity (1 W / 1 m)99 dBFrequency response70 - 5000 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap7.92 mmThiele & Small ParameterFs (Resonance Frequency)79 HzRe (DC resistance)7.3 Ohm(s)Qms (mechanical quality)13.88Le (inductance of the voice coil)0.54 mHQes (electrical quality)0.68Qts (overall quality)0.65Vas (equivalent volume)50.9Mms (moving mass)31 gBL (power factor)12.8 T/mXmax (maximum displacement)0.8 mmCms (elasticity of the suspension)0.13 mm/NSd (membrane area)519.5 cm2Weight4,179 kg