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.