Polk Audio FXI A6 Surround Speakers (Pair， Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Pair of timbre-matched surround speakers to fit any Polk Audio home theater or multi-channel music system</li><li>Equipped with a 6.5-inch dynamic balance driver with polymer/mineral composite cone</li><li>Features a neodynium magnet， low viscosity ferro-fluid cooling， and a heat sink on the back of the magnet</li><li>Equipped with two 1-inch silk/polymer composite dome tweeters</li><li>All MDF construction and extensive asymmetric cabinet bracing ensure resonance-free enclosures</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ILLbUuSHL.jpg" noproxy>