Polk Audio TSi200 Bookshelf Speakers (Pair， Black)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Pair of affordable yet powerful bookshelf speakers </span></li><li><span class="a-list-item"> Equipped with 1-inch silk/polymer composite Dynamic Balance dome tweeter </span></li><li><span class="a-list-item"> Frequency response: 43Hz-25kHz </span></li><li><span class="a-list-item"> Equipped with two 5.25-inch diameter bi-laminate organic fiber cone woofers </span></li><li><span class="a-list-item"> Recommended Amplification: 20-150 watts/channel </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/413l42Y1acL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41P%2BERMTyGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41nrirsWocL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41KOTWGZt-L.jpg" noproxy>