Engineered for professional audio environments, the JBL VTX S28 subwoofer combines two 18-inch Differential Drive® woofers in a vented enclosure optimized for maximum efficiency. Its design provides extended low-frequency output and supports advanced array configurations, including cardioid setups for directional control. The S28 integrates with VTX series systems and features robust rigging hardware for quick, secure suspension or ground stacking. Constructed for durability and reliability, this subwoofer is suited for stadiums, arenas, and outdoor events demanding impactful bass reproduction.