Powerbass M104D 10-Inch Dual 4 Ohm Subwoofer (Discontinued by Manufacturer) 10-Inch 4-Ohm Single voice coil 325 Watts RMS 650 Watt max power handling Comes with mounting plate application guide with box building tips and Powerbass decal 2 Inch Vented BASV voice coil former Non-pressed paper cone with large roll Santropene Surround Black Emissive coated back plate and pole piece 10-Inch 4-Ohm Dual voice coil 325 Watts RMS 650 Watt max power handling Comes with mounting plate application guide with box building tips and Powerbass decal 2 Inch Vented BASV voice coil former Non-pressed paper cone with large roll Santropene Surround Black Emissive coated back plate and pole piece