The 165W-XP, following our successful 2-way kit 165W-RC, incorporates exclusive technologies like TMD surround, progressive spider, ventilated motor, a new Beryllium tweeter, and bi-amplification crossover, while featuring a performance-oriented design in line with our brand's heritage. Focal's distinct 'm'-shaped inverted dome tweeter utilizes Beryllium to deliver exceptionally silky high frequencies. Being both lighter and stiffer than titanium and aluminum, this substance imparts the velvety quality of a silk tweeter to your music, while also providing the precision and extended range typically linked with a premium metal tweeter. Prepare to experience an elevated level of intricacy from these tweeters.