Powerbass S5C 5.25-Inch Component Speakers Pure Silk Dome 1" Tweeter - Black 2-layer Paper, DDC Cone Dynamic Damping Coating (DDC) - Double Pressed Treated Foam Surround UV Protected - Shallow Mounting Depth EFF Motor Structures (Efficient Flux Field) - Rigid Tooled Basket With Flat Black Finish Computer Aided External 12dB 2-way Crossover Network