High-Powered Active Subwoofer System with DSP for Versatile Sound Reinforcement The GL26SA and G Series line array speakers are designed for exceptional sound reinforcement across various venues. The GL26SA features a high-powered 15-inch woofer and built-in DSP for flexible and versatile applications, while the G Series offers a robust, moisture-proof birch plywood shell. Both series are equipped with advanced features for durability and superior audio performance, making them ideal for large touring shows, medium-sized stadiums, multifunction halls, churches, and other sound reinforcement occasions.