Description of 46CSC354: The CS Series delivers remarkable performance and ultra-clean bass, utilizing a heavy-duty motor/magnet structure featuring EVC (Extended Voice Coil) technology not found in stock speakers. They use polypropylene cones with tough, ribbed, UV-treated surrounds for precise linear excursion and reliability. CS-Series 3-1/2 Inch Coaxial Speakers are built for clarity, volume and durability. These coaxial speakers are a significant upgrade in your sound. A stamped-steel framework supports a rigid polypropylene cone and UV-treated foam surrounds that stand up to heat and direct sunlight, for years of outstanding audio quality. These CS speakers work best with 30 watts of recommended powerDescription of 46CSC6934: The CS Series delivers remarkable performance and ultra-clean bass, utilizing a heavy-duty motor/magnet structure featuring EVC (Extended Voice Coil) technology not found in stock speakers. They use polypropylene cones with tough, ribbed, UV-treated surrounds for precise linear excursion and reliability. CS-Series 6x9-inch 3-Way Speakers are the perfect way to upgrade your factory system. CS-Series 3-Ways deliver remarkable performance and ultra-clean bass with a heavy-duty motor/magnet structure not found in stock speakers. A stamped-steel frame supports a rigid polypropylene cone with EVC (Extended Voice Coil) technology for the best sonic quality. Using zero-protrusion PEI tweeters with neodymium magnets, you get the clarity you need without interfering with factory grilles. The rugged 6x9-inch, 3-way speaker is especially cool. With a massive 300-watt peak power rating, this triaxial driver gives you extraordinary volume, while the integrated 2-inch midrange driver and dedicated tweeter give you crisp, accurate details for the realism you crave. These CS speakers work best with 150 watts of recommended power.