The QSC AD-S28TW is a versatile, high-performance surface-mount subwoofer designed to provide extended low-frequency reinforcement in commercial installed sound applications where ceiling mounting is not feasible or desired. Part of the AcousticDesign series, this subwoofer complements the surface-mount and ceiling speakers in the line, offering a discreet yet powerful bass solution for spaces like conference rooms, hotels, restaurants, retail stores, and houses of worship. Its compact, trapezoidal enclosure is engineered for easy mounting on walls or ceilings, featuring a low-profile design that minimizes visual intrusion. The textured black finish and paintable grille allow it to blend seamlessly with a variety of interior decors, maintaining architectural aesthetics while delivering impactful sound.

This subwoofer employs an 8-inch long-excursion woofer in a bass-reflex (ported) enclosure, optimized to deliver deep, articulate bass from its compact footprint. It supports multiple operating modes, including 70V and 100V constant-voltage as well as 8Ω low-impedance, providing system integrators with maximum flexibility to integrate it into virtually any commercial audio system topology. Selectable power taps on the constant-voltage side enable precise power matching to the room's acoustic requirements and the desired output level. Built-in protection circuitry safeguards the driver against thermal overload and excessive excursion, ensuring reliable performance in continuous-use environments.

The AD-S28TW is designed to pair with AcousticDesign full-range speakers, filling in the critical lower octaves that smaller speakers cannot reproduce, thereby creating a full-range, balanced audio experience. Its surface-mount capability makes it an ideal solution for rooms with concrete ceilings, high ceilings, or where T-bar grid access is unavailable. For audio consultants and installers seeking a flexible, high-quality, and aesthetically subdued subwoofer that enhances music playback and speech clarity without compromising on design, the QSC AD-S28TW offers a robust and practical solution.