Definitive Technology ProCinema 600 5.1 Home Theater Speaker System (black)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Single ProCenter center-channel speaker </span></li><li><span class="a-list-item"> Equipped with two 3.25-inch bass/midrange drivers coupled to two 3.25-inch pressure-driven planar low-frequency radiator </span></li><li><span class="a-list-item"> Frequency response: 55Hz - 30kHz </span></li><li><span class="a-list-item"> Equipped with one 1-inch pure aluminum dome tweeter </span></li><li><span class="a-list-item"> The high quality finish is available in gloss black or gloss white </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41xwccTfidL.jpg" noproxy>