With a depth of only 11 inches, the new KPT-418 cinema subwoofer is even more compact than the KPT-884. Serving as a replacement for the KPT-484, this high-output, bass-reflex subwoofer system delivers true bottom-end performance along with high power handling capability and high efficiency. It can be used as the main subwoofer system in a small auditorium or as the subwoofer for surrounds in small- to medium-sized auditoriums.

THX®-Approved, the KPT-684 is a high output, bass-reflex subwoofer featuring advanced low-frequency driver design. The system utilizes two 18-inch drivers that gain their high efficiency through the use of large, geometrically optimized magnet structures and lightweight cones. The enclosure is constructed of one-inch, void-free birch plywood and features internal cross braces at all cabinet joints.