Kicker CSS65 6.5-INCH (160mm) COMPONENT SYSTEM WITH .75-INCH (20mm) TWEETER, Bundle CSS65 6.5-INCH (160mm) COMPONENT SYSTEM WITH .75-INCH (20mm) TWEETER, PAIR, 4-OHM, ROHS CS Series CSS65 The CS 6-1/2-Inch Component Speakers are an outstanding factory upgrade. The components include Titanium tweeters and polypropylene woofers with EVC (Extended Voice Coil) technology, for a customized sound and the best sonic quality. These CS speakers work best with 100 watts of recommended power. See below for more detail Specifications Woofer Size | in [mm] 6 1/2 [160] Tweeter Size | in [mm] 3/4 [20] Dome Material Titanium Peak Power | [watts] 300 Continuous Power | [watts RMS] 100 Effective Frequency Range | Hz 35-21k Woofer Mounting Hole Diameter | in [mm] 4 13/16 [123] Woofer Bottom Mount Depth | in [mm] 1 11/16 [43] 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