Alpine S2-S69 - S-Series 6"x9" 520 Watt 2 Way Coaxial Door Shelf Car Speakers PairAlpine S2 S69 S Series 6"x9" 520 Watt 2 Way Coaxial Door Shelf Car Speakers Pair Newly redesigned and Hi Res Audio Certified, the Next Generation S Series S2 S69 16cm x 24cm (6" x 9) Coaxial Speakers offer a new standard in entry level sound performance. We packed supreme capability into these speakers by using highly effective materials and proprietary design elements. The lightweight woofer cone, crafted from a combination of polypropylene, glass