OSD Audio PS12 High Powered 175W Premium 12Inch Home Theatre Subwoofer Black

" http://www.amazon.ca/gp/product/B005RF2QNM?tag=httptorontost-20
Large Front-Firing 12-inch reinforced woofer for excellent bass response
Dual front-firing ports designed to produce extended low-frequency response
175 Watts PMS Power Output
Adjustable Gain Control and Variable Crossover Frequency set between 50Hz and 250Hz
Includes switched or auto-sensing turn-on options with Power on LED indicator
OSD Audio PS12 High Powered 175W Premium 12-Inch Home Theatre Subwoofer (Black)"