The Adamson IS118 White is a high-performance companion subwoofer for the IS7, featuring a lightweight, long-excursion 18-inch ND18-S Kevlar neodymium driver with Adamson’s Advanced Cone Architecture. Its ultra-efficient front-loaded enclosure is designed to reproduce clean, musical low-frequency information. The enclosure is constructed from marine-grade birch plywood, aircraft-grade aluminum, and steel and features front and rear Speakon™ NL4 connectors, with barrier strips available upon request. An integrated rigging system matches the IS7, allowing the IS118 to be flown in the same array using a simple adapter frame. The enclosure is finished in white.