Alpine Preloaded Subwoofer Enclosure Halo S-Series 12-Inch with ProLink S2-SB12V

A subwoofer enclosure that sounds as good as it looks. Alpine’s preloaded (S2-SW12D4), linkable subwoofer enclosures give you powerful performance with the unique Alpine Halo design. ProLink is unique to Alpine and allows you to connect two S2-SB12V sub enclosures together using the KTX-H12 linking kit (sold separately), for a compact, sturdy dual-... moresubwoofer solution.