Kicker CS Series Car Audio Bundle: 46CSC654 6.5 inch 46CSC464 4×6 inch 2-Way Speakers

They use polypropylene cones with tough ribbed UV-treated surrounds for precise linear excursion and reliability. The CS-Series design features near-zero tweeter protrusion so your speakers fit perfectly behind factory grilles. This simple drop-in solution delivers acclaimed KICKER performance with a stamped-steel framework rigid polypropylene cone and EVC Extended Voice Coil technology. You get superb clarity durability and volume now and way down the road!