Polk Audio TSi400 Floorstanding Speaker (Single， Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Single versatile high-performance floorstanding loudspeaker</li><li>Equipped with 1-inch silk/polymer composite Dynamic Balance dome tweeter</li><li>Frequency response: 34-25KHz</li><li>Equipped with three 5.25-inch diameter bi-laminate organic fiber cone woofers</li><li>Recommended Amplification: 20-200 watts/channel</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31FDD%2BaJBEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41sF-bjmOOL.jpg" noproxy>