More from Amazon.com : http://www.amazon.com/gp/product/B00O8YLIY6?tag=thefatkidin06-20 <br /> <br />Sony SACS9 10-Inch Active Subwoofer Black <br /> <br />115 Watt Amplified Subwoofer 6 ohms 80 Hz 10 THD <br />10 Foamed-Mica Cellular Reinforced Woofer <br />Speaker and Line Level Inputs Frequency Response 28-200 Hz