KRK® Systems have introduced two new powered subwoofers, the KRK12sHO and KRK12s, at Musikmesse 2011. The KRK12sHO is the ultimate expression of a subwoofer delivering the intense focused bass response necessary for demanding high-level applications, while the KRK12s was designed to be the workhorse subwoofer for music production where a precise representation of the bass frequency spectrum is a necessity.