The Klipsch R-80SWi is an 8-inch wireless powered subwoofer that brings cinematic low-end to any home theater or two-channel setup. A 150-watt all-digital amplifier drives the high-performance front-firing driver to authoritative output, while built-in wireless lets you place the sub where it sounds best without routing long cables. Adjustable crossover, phase, and volume dial it in for your specific room.