Kicker 46CSS674 - CS Series CSS67 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. The CS-Series 6-3/4-inch Component Speakers are built for awesome sound that plays as long as the ride takes you. CS-Series components include titanium tweeters and two-way crossovers. Easily customize your sound with a smooth 12dB slope and three-position tweeter adjustment switch (0dB/+3dB/+6dB). The optimized footprint means great sound with hassle-free installation, no matter where you mount it! Mount the tweeter with the flush, angled or surface-mount tweeter pods, for outstanding imaging and a sophisticated look. These CS-Series speakers work best with 100 watts of recommended power. See below for more details. Fits nearly every car made 12dB crossovers with a smaller footprint for easier installation Three-position tweeter switch for dialing in your highs EVC™ (Extended Voice Coil) technology help deliver remarkable bass response Titanium tweeter construction and neodymium magnets to reveal subtle details UV-treated poly-foam surround assists with precise linear excursion Phase plugs in the woofer cones eliminate any distortion Steel mesh grilles protect your drivers Three tweeter mounting options including flush, angled and surface pods Specifications Woofer Size | in [mm] 6 3/4 [165] Tweeter Size | in [mm] 3/4 [20] Dome Material Titanium Peak Power (watts, per ANSI/CTA-2031-A) 300 Recommended Amplifier Power (watts RMS) 100 Effective Frequency Range | Hz 35-21k Woofer Mounting Hole Diameter | in [mm] 5 1/2 [140] Woofer Bottom Mount Depth | in [mm] 1 13/16 [47] Flush Mounting Tweeter Hole Diameter | in [mm] 1 9/16 [40] Flush Mount Tweeter Depth | in [mm] 9/16 [14.5] High Pass | dB, at Frequency | Hz 12, 4000 Low Pass | dB, at Frequency | Hz 12, 4000 High Frequency Output Attenuation | dB 0, 3, & 6 Bolt-Thru Grilles Yes