Seismix 1 Mk6 SubwooferBig bass performance Compact and discreet design Dynamic experience Performance in a compact design. The Seismix 1 Mk6 will fit just about anywhere and deliver smooth bass for both movies and music. For a big bass experience from a discreet subwoofer that can be placed almost anywhere in the room, the Seismix 1 Mk6 will provide the right sound while taking up half the space. With a hefty 200mm downward fitting woofer and vent, and a high quality class