DESC: Check out the cone on this beauty! The updated Pioneer TS-W series subwoofer features one of the most unique cones in the industry. The patented blue IMPP (injection molded polypropylene) composite cone and dual layer urethane rubber surround combine to deliver powerful and distortion-free bass. These new subwoofers also feature an IMPP dust cap with 3D Pioneer logo for great looks and increased rigidity. From the 4-layer voice coil to the strontium magnet assembly, construction and materials are top-notch. The TS-W series is designed to reproduce incredibly accurate bass in small sealed enclosures.