Features 2" High Temperature 4 Layer Voice coil Compressed Paper cone Double Stitched High Excursion Foam Surround Stamp-cast basket PVC Mounting Gasket Large Gauge Spring Terminals Protective magnet band Specifications Nominal Impedance : 4+4Ω Speaker Sensitivity : 84dB Nominal Music Power : 350 Watts Maximum Music Power : 1200 Watts Dimensions Overall Diameter: 8.43"/ 214 mm Mounting Depth: 4.55"/ 115.5 mm Cutout Diameter: 7.20"/ 182.97 mm TS PARAMETERS Resonant Frequency (fs): 41.1 Hz D.C. Vo