Pioneer's TS-C1653 6-1/2" components demand to be noticed. Their titanium-colored Foamed IMPP woofers and 7/8" dome tweeters are ready to rock your world with big sound.The foamed IMPP woofers pump out heavy bass, while the tweeters hit exhilarating highs and can be surface-, flush-, or angle-mounted. Outboard two-way crossovers (with 18 dB/octave high-pass and 6 dB/octave low-pass filters) are included. These exciting component systems fit in standard 5-1/4" and 6-1/2" openings, as well as many GM and Volkswagen oversized openings.