Product typeLoudspeaker ChassisTypeGuitarsNominal Diameter12 ", 304.8 mmVoice Coil1.75 ", 44.5 mmOverall diameter305.5 mmPitch Circle Diameter294.3 mmCut- out Measurement278.1 mmDiameter of fixing holes6.4 mmDepth166.6 mmNominal Impedance16 Ohm(s)Nominal Load Capacity75 WSensitivity (1 W / 1 m)100 dBFrequency response75 - 5.200 HzVoice Coil MaterialcopperMagnetFerriteDepth of the magnetic gap7.92 mmThiele & Small ParameterFs (Resonance Frequency)89.23 HzRe (DC resistance)12.13 Ohm(s)Qms (mechanical quality)19.32Le (inductance of the voice coil)0.95 mHQes (electrical quality)1.59Qts (overall quality)1.47Vas (equivalent volume)44.96Mms (moving mass)27.53 gBL (power factor)10.84 T/mXmax (maximum displacement)0.47 mmCms (elasticity of the suspension)0.12 mm/NSd (membrane area)519.5 cm2Weight4,4 kg