This Acoustic Audio 5.1 channel multi-speaker system features five, 5.25" in-wall/ceiling speakers and one black 15" powered home audio subwoofer. These S191 200 watt (100W RMS) in-wall speakers deliver rich, detailed sound which makes them a great choice for music and movie lovers alike. An easy and attractive addition to any sound system, these two-way square speakers will go great with your surround sound home theater or as part of your multi-room audio system. They mount flush in a wall or ceiling for nearly invisible installation and have paintable white grills that can be modified to match any individual decor. They contain a 5.25" woofer and a high rigidity polypropylene cone with extended throw drive assembly, along with a 12mm soft dome tweeter. The Acoustic Audio PSW-15 black powered home subwoofer features: a high-current 600 watt amp, which drives its down-firing 15" woofer, MDF black bass-reflex enclosure and a 22Hz to 250Hz frequency response that delivers thumping bass.