The JBL AC118S is a professional, high-output 18-inch subwoofer engineered to deliver powerful, articulate low-frequency extension in fixed installation sound reinforcement systems. This subwoofer is designed to complement JBL's line array and point source systems, providing the deep bass foundation required for music playback, live performance, and cinematic sound in venues such as performing arts centers, large houses of worship, nightclubs, and entertainment complexes. It features a high-power 18-inch transducer with a large voice coil and optimized motor structure, capable of handling substantial amplifier power and delivering high sound pressure levels with low distortion. The enclosure is constructed from rugged, void-free plywood and finished with a durable, textured coating for longevity.

The AC118S is designed for versatile deployment, offering multiple rigging and flying options to integrate seamlessly with main loudspeaker arrays or to be ground-stacked. Its tuned port design is optimized for extended low-frequency response and high efficiency, ensuring maximum output from the available amplifier power. The subwoofer's rugged input panel features dual Neutrik NL4 connectors for parallel wiring and flexible system integration. Built to meet the rigorous demands of professional touring and installation, the AC118S delivers the impactful, controlled bass necessary to create a full-range, immersive audio experience, supporting everything from subtle musical passages to explosive sound effects.

For system designers and consultants, the JBL AC118S provides a reliable and powerful low-frequency solution. Its robust construction, high output capability, and flexible mounting options make it an ideal choice for enhancing the low-end performance of any large-scale professional audio system.