Definitive Technology ProSub 800 120v Speaker (Single， Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Single ProSub powered subwoofer speaker</li><li>Equipped with one high-definition 8-inch woofer with polymer cone coupled to one 8-inch infrasonic radiator</li><li>Built in 300 watts RMS amplifier</li><li>Frequency response: 20Hz - 150Hz</li><li>High quality finish in matte black</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41gsDcigCcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51K5C%2BTA-gL.jpg" noproxy>