Polk Audio RM6750 5.1 Channel Home Theater Speaker System (Set of Six， Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Six piece surround sound package that includes 2 front and 2 surround speakers， 1 center-channel speaker， and 1 subwoofer</li><li>Satellite and center-channel speakers utilize 3.25-inch polymer-composite cone drivers for distortion-free midrange</li><li>Features 0.5-inch silk and polymer-composite dome tweeter in each satellite speakers</li><li>Subwoofer utilizes an eight-inch long-throw dynamic-balance poly-composite driver for longer driver excursion and better linearity</li><li>Satellite and center-channel speakers can accommodate 6.1 or 7.1 channel systems</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41HX9W5XT8L.jpg" noproxy>