PIONEER TS-D1720C 6.75in D-Series 280-Watt Speaker Package • 280W Max, 60W Nominal • Dual-Layer Basalt/Aramid Fiber Imx Cone • Butyl Rubber Surround • 1.125 Soft Dome Tweeter With Flush, Surface & Invisible Mounts • Crossover, 6 X 8 & Shallow Mount Adapters