Definitive Technology ProSub 1000 120v Speaker (Single， Black)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Single ProSub powered subwoofer speaker </span></li><li><span class="a-list-item"> Equipped with one high-definition 10-inch woofer with polymer cone coupled to one 10-inch infrasonic radiator </span></li><li><span class="a-list-item"> Built in 300 watts RMS amplifier </span></li><li><span class="a-list-item"> Frequency response: 18Hz - 150Hz </span></li><li><span class="a-list-item"> High quality finish in matte black </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/415lj5YqlGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/511QxhaE5SL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31fnikijoPL.jpg" noproxy>