Unmatched Low-End Power for Every Venue The JBL SRX818S is an 18-inch passive subwoofer system designed to deliver powerful, precise low-frequency performance. Perfect for concerts, touring productions, or permanent installations, this subwoofer provides deep, resonant bass that enhances any live sound setup. Its robust construction and versatile features make it ideal for musicians, DJs, and sound engineers alike. Innovative Transducer Technology for Deep Bass At the core of the SRX818S is JBL's patented Differential Drive technology, featuring an 18-inch transducer with dual 3-inch voice coils. This innovative design provides higher power handling and reduced distortion, ensuring consistent and accurate bass response even at high output levels. With a frequency response of 45 to 150 Hz, this subwoofer captures the full depth of your sound. Built for Versatile Configurations Whether you're stacking for a cardioid array or setting up a traditional configuration, the SRX818S offers unmatched flexibility. The subwoofer includes indexed feet for secure stacking and a standard M20 pole cup for mounting top boxes, making it easy to adapt to any venue. With M10 suspension points, the subwoofer is also ready for flown configurations in permanent installations. Engineered for Rugged Reliability The SRX818S is housed in an 18mm plywood enclosure, ensuring durability and long-lasting performance in demanding environments. Its ergonomic handles make transport easy, while its rugged exterior withstands the rigors of touring. The subwoofer’s robust design guarantees reliability for both mobile and fixed installations. Optimized Compatibility with Leading Amplifiers Designed to integrate seamlessly with JBL’s premium systems, the SRX818S offers tunings and presets for Crown ITech HD and XTI 2 amplifiers, as well as dbx VENU signal processors. This ensures optimal performance and effortless configuration, allowing you to focus on your sound without technical limitations.