Polk Audio CSI A4 Center Channel Speaker (Single， Cherry)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> A single center channel speaker timbre-matched to fit any Polk Audio home theater or multi-channel music system </span></li><li><span class="a-list-item"> Two 5.25-inch dynamic balanced drives with polymer composite cones </span></li><li><span class="a-list-item"> One 1-inch silk composite dome tweeter </span></li><li><span class="a-list-item"> Features a neodynium magnet， low viscosity ferro-fluid cooling， and a heat sink on the back of the magnet </span></li><li><span class="a-list-item"> All MDF construction and extensive asymmetric cabinet bracing ensure resonance-free enclosures </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41VMvgFpkfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31Jwf2O42-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31RlT%2BW0VtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51oq0-lZw4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41C5-ZFoSPL.jpg" noproxy>