Definitive Technology In-Wall Sub Reference Speaker (Single， White)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Single， fully enclosed reference in-wall subwoofer speaker</li><li>Equipped with one 13-inch long-excursion woofer coupled to a 13-inch infrasonic radiator</li><li>Frequency response: 14Hz - 200Hz</li><li>Non-resonant sealed medite enclosure</li><li>Cut-out size: 14.88 W x 4 D x 25.13 H inches</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41XBjsz7wxL.jpg" noproxy>