A front-loaded subwoofer featuring an 18-inch ND18-S Kevlar® Neodymium driver with Adamson’s Advanced Cone Architecture and a 4-inch voice coil. Designed as a companion to the CS7 and CS7p, it delivers a 35 Hz–100 Hz frequency range and up to 133 dB peak SPL. The CS118 includes onboard DSP, single-channel Class-D amplification with 3,000 W total output, redundant MILAN network connectivity with daisy-chaining capability, dual XLR connections, dual etherCON connections, and powerCON TRUE1 connectivity. Its integrated rigging system and built-in M20 thread provide flexible installation options, while the enclosure is constructed from marine-grade birch plywood, aircraft-grade steel, and aluminum.