Audioengine S8 Black 8-inch Powered Subwoofer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 8-inch powered downfiring subwoofer </span></li><li><span class="a-list-item"> Auto-sleep power saving mode </span></li><li><span class="a-list-item"> Solid hand-finished， front-ported MDF cabinet </span></li><li><span class="a-list-item"> Dual line-level inputs (RCA and mini-jack) and LFE </span></li><li><span class="a-list-item"> Frequency response: 27Hz - 180Hz (+/-1.5dB) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31wbVGLILQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51cC2GXay4L.jpg" noproxy>