A structure is only as good as its foundation and your sound is no different. The TS18S subwoofer is built with reliable durability in mind to be the anchor of your setup and the anchor of your sound. Built with superior materials, the TS18S is engineered with a premium internally braced composite cabinet enclosure for tight, controlled sound. Enjoy all the thump and bump without the unnecessary rumbles and rattles. The key to low-end is clear definition for impactful sonic transmission and a carefully crafted enclosure ensures a truly unbiased sound delivery. With a premium 18-inch driver featuring a 3-inch, voice coil transducer, rest assured, the TS18S subwoofer is built to handle the rigors of live performance whether permanently installed or as part of a traveling setup, night after night.