JVC 6.5 Inch 4-Way 350W Car Speakers JVCs CS-ZX640 speakers are designed to fill your car with more powerful, yet also delicate and impressive sound. The carbon mica 3D woofer and rubber surround offer precise, speedy response, while larger cones deliver enhanced midrange, and 3D grilles support wide-spreading sound. Sound Dynamics Design with 3D Shaped Grill Based on the DRVN Series, the CS-ZX640 is designed to be even more aggressive and tough-looking thanks to being developed in the DRVM XX Series. Semi-open grilles have a speaker box effect, diffusing warm, ambient sound across the vehicle. Aramid Carbon Mica 3D Cone Woofer & Rubber Surround JVC's CS-ZX640 is equipped with Aramid carbon mica 3D cone woofers which provides increased strength with less distortion, precise amplitude, and speedy response. Accompanied by Rubber Surroundings making the CS-ZX640 Durable and quick-responding thanks to the rubber surround that supports high-power audio input, with undistorted bass. Enhanced Mid-Range Sound Larger cones deliver lively mid- and high-range sound as well as clear vocals, resulting in improved overall sound quality.