Bass alert � Alpine's Type-X subwoofers bring the ultimate combination of power and performance to your sound system. Engineered with high output in mind, Alpine's top-of-the-line subs handle a mind-blowing 3,000 watts of peak power, while still reproducing the tight, low frequency detail that means great bass.The SWX-1043D 10" subwoofer provides full bass by squeezing every last millimeter of excursion from the carbon fiber/aluminum honeycomb cone, thanks to its high-roll Santoprene rubber surround.