Definitive Technology ProCenter 1000 Compact Center Speaker (Single， 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 4.5-inch cast basket drivers coupled to two 4.5-inch pressure-driven planar low-frequency radiators </span></li><li><span class="a-list-item"> Frequency response: 47Hz - 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 in gloss black </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/319tCxOsF9L.jpg" noproxy>