This Acoustic Audio 5.1 channel multi-speaker system features four, 8" in-wall/ceiling speakers, a 6.5" center channel and one black 8" powered home audio subwoofer. These MT8 300 watt (150W RMS) in-wall speakers 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 8" woofer and a high rigidity polypropylene cone with extended throw drive assembly, along with a 12mm soft dome tweeter. The CC6 300 watt (150W RMS) in-wall or ceiling center channel speaker contains two 6.5" woofers, a high rigidity polypropylene cone with extended throw drive assembly and a 12mm soft dome tweeter. They also have a white paintable grill. The Acoustic Audio PSW-8 black powered home subwoofer features: a high-current 300 watt amp, which drives its down-firing 8" woofer, MDF black bass-reflex enclosure and a 26Hz to 250Hz frequency response that delivers thumping bass.