
Dual 18 Inch Passive Subwoofer Professional Stage Bass Speaker for Concert. Massive Output with Deep Bass Delivers a powerful 141dB peak SPL for authoritative low-end impact. Provides robust bass extension down to 30Hz for a thunderous live sound experience. High-Power Tour-Grade Drivers Features dual 2268HPL neodymium 18-inch woofers. Handles 4000W program power for sustained high-output performance. Flexible Deployment and Coverage Wide stance design allows easy splaying with top boxes. Indexing feet support both standard and cardioid stacking for optimized subwoofer array coverage. Rugged and Durable Construction Built with select 18mm birch plywood and finished with tough polyurea paint. The 14-gauge perforated steel grille ensures long-term protection for the drivers. Versatile Application Design Works seamlessly for concerts, touring, and permanent installations. Ideal for a wide range of venues from corporate spaces and educational facilities to houses of worship.