The B28W features two high-performance 8" (200mm) drivers, which allow it to provide high-quality, low-frequency output. The self-contained subwoofer module with integrated back-box allows for easy retrofit installation application. This in-wall subwoofer system is designed to be powered by the SA1000, a single channel, 1500W Peak Class D amplifier. The SA1000 is a custom amplifier solution, optimized for the highest level of performance and reliability. This rackmount amplifier includes user features on the front panel, and a custom installer focused feature set on the rear panel. As part of Revel's in-wall subwoofer system, this rack mountable Class D component is designed to power the B28W in-wall subwoofer.