[. . . ] [. . . ] ✹Hybrid Surround The hybrid surround features the combined benefits of two materials. Light-weight cloth provides quick and accurate response, while rubber ensures stability and increased bass response as well as durability. ✹PEI (Poly-Ether Image) Midrange/Tweeter The high-response PEI midrange/tweeter provides efficient performance across a wide frequency range. Improved Sound Frequency Response drvn Series ✹Carbon Mica Cone To the rigid and light-weight aramid and carbon fiber composite olefin cone base, mica is added to further strengthen and reduce distortion. The resulting cone has optimal weight, rigidity, and composition for superior sound and durability, with improved SPL response in the most audible range. Conventional Models More powerful sound achieved by increasing the sound pressure of the most audible range ✹Cutaway View Grille with Speaker Box Effect PEI Tweeter Diaphragm Voice Coil (Tweeter) Strontium Magnet (Woofer) Tweeter Ornament with Diffuser Carbon Mica Cone Hybrid Surround Neodymium Magnet (Tweeter) Voice Coil (Woofer) NTK-0786-20-1 drvn Series Speakers Aggressive Looks with Quality Sound ✹Midrange/Tweeter Material The PEI composition midrange/tweeter features distortion-free, wide-range frequency reproduction, with reduced hisses and prolonged accents. drvn Series Speakers ✹Woofer Grille Design The aggressive design of the woofer grille also has advantages in audio performance. Calculated for effective in-car sound diffusion, the woofer delivers warm, ambient sound, even with sub-optimal locations of pre-installed speakers. Grille with Speaker Box Effect Better! Up 2. 5dB with Grille without Grille CS-VS607 Separate Speaker for More Powerful Sound Speakers ✹High-Powered Woofer The powerful magnetic circuit with a large 10 oz. [. . . ] [. . . ]