Features: White Injected Polypropylene ConeSpecially Treated Black Rubber Edge SuspensionVented Motor Structure1'' High Temperature Kapton Voice CoilHeavy Duty Magnet StructureProduct DescriptionWhite Injected Polypropylene ConeSpecially Treated Black Rubber Edge Suspension Vented Motor Structure 1.0-Inch High Temperature Kaptoon Voice Coil Heavy Duty Magnet Structure Bumped Yoke Plate for Extended Excursion Impedance: 4 Ohm 150 Watts RMS/300 Watts Peak ...