JVC CSZX640 350W 6.5-Inch 4-Way Coaxial Speakers Carbon Mica 3D Cone Woofer 52mm (2-1/16") Poly-Ether Imides' Cone Midrange Poly-Ether Imides' Dome Tweeter Poly-Ether Imides' Dome Super Tweeter Ferrite Magnet (Woofer/Midrange)