Alpine S2-W8D2 - 8” 20cm 900 Watts Dual 2 Ohm Car Subwoofer Bass Sub DriverAlpine S2 W8D2 8 20cm 900 Watts Dual 2 Ohm Car Subwoofer Bass Sub Driver Alpine's redesigned next generation S Series subwoofers apply technology from our higher end subs to bring you the depth and punch that'll make your tunes come alive. With high tech materials and Alpine know how, these subs deliver the lows you crave at a budget friendly price. The S2 W8D2 20 cm (8") sub handles up to 300 Watts RMS, so you can drive it hard without any worries.