The QSC AD-S28Tw is a high-performance dual 8-inch surface-mount subwoofer engineered to deliver deep, powerful bass in commercial audio systems. Featuring dual polypropylene cone woofers and a dual-chamber ported bandpass cabinet, it provides extended low-frequency performance with enhanced output and efficiency.

A large port area further improves bass response, while the defeatable passive 120 Hz low-pass filter with impedance compensation allows flexible system integration. With 250 watts continuous power handling (700 watts peak) and a built-in 70/100V multitap transformer with 8-ohm bypass, the AD-S28Tw supports both distributed and low-impedance installations.

Constructed from durable marine-grade plywood and supplied with yoke mount and flying hardware, this subwoofer is designed for reliable performance in a wide range of indoor and protected outdoor environments requiring impactful, professional-grade low-frequency reinforcement.