Pioneer SW-8MK2 Andrew Jones Designed 100-Watt Powered Subwoofer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Powerful 100 Watt internal amplifier for controlled bass at any volume level high or low </span></li><li><span class="a-list-item"> 8” long throw woofer allows for lower frequencies than traditional woofers </span></li><li><span class="a-list-item"> Crossover and Phase Adjustments to perfectly blend subwoofer with your speakers </span></li><li><span class="a-list-item"> Frequency Range: 38 Hz – 150 Hz </span></li><li><span class="a-list-item"> Speaker level and line level inputs for installation options using either speaker wire or a subwoofer cable </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/5141Um6oSjL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51hKMwEpmRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61Mu-wbhDJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01vsw%2B48W7S.png" noproxy>