• Alpine Alpine's Type-R subwoofers will bring big bass to just about any vehicle. The SWR-10D2

    Alpine's Type-R subwoofers will bring big bass to just about any vehicle. The SWR-10D2 10-inch subwoofer features a cone made from Kevlar® treated pulp and its durable HAMR Santoprene™ surround allows for huge amounts of excursion. This sub was built for bassheads that want the best of both worlds: accurate response and otherworldly thump.