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 Impedance4 Ohm(s)Nominal Load Capacity150 WSensitivity (1 W / 1 m)99 dBFrequency response70 - 4200 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap7.92 mmThiele & Small ParameterFs (Resonance Frequency)89 HzRe (DC resistance)3.8 Ohm(s)Qms (mechanical quality)21.11Le (inductance of the voice coil)0.5 mHQes (electrical quality)0.7Qts (overall quality)0.68Vas (equivalent volume)39Mms (moving mass)30 gBL (power factor)9.5 T/mXmax (maximum displacement)0.8 mmCms (elasticity of the suspension)0.11 mm/NSd (membrane area)520 cm2Weight4,143 kg
