Kicker 46CSC654 6.5" 2-Way Coaxial Speakers and 46CSC684 6"x8" Coaxial Speakers Kicker 46CSC654 CS series 6.5" 2-way coaxial speakers support a rigid polypropylene cone and stamped-steel framework with EVC (Extended Voice Coil) technology for the best sonic quality. These speakers also use zero-protrusion PEI tweeters with neodymium magnets, you get the clarity you need without interfering with factory grilles. Kicker 46CSC684 CS Series 6"x8" 2-way speakers work best with 75 watts of recommended power and using zero-protrusion PEI tweeters with neodymium magnets, you get the clarity you need without interfering with factory grilles. These CS Series speakers use polypropylene cones and a stamped-steel framework to significantly upgrade your sound. Product Highlights: 2-way 6-1/2" coaxial speakers (pair) Polypropylene woofer cone with polyester foam surround 1/2" polyetherimide (PEI) balanced dome tweeter UV-treated poly-foam surround resists heat or direct sunlight Steel mesh grilles included for speaker protection 100 watts RMS (300 watts peak power) Frequency response: 40-20,000 Hz Sensitivity: 90 dB Top-mount depth: 1-13/16" Kicker 46CSC684 6"x8" Coaxial Speakers: 2-way 6"x8" coaxial speakers (pair) Polypropylene woofer cone with polyester foam surround 1/2" polyetherimide (PEI) balanced dome tweeter Handles up to 75 watts RMS (225 watts peak power) Frequency response: 45-20,000 Hz Sensitivity: 90 dB Top-mount depth: 2-5/16"