Bower and Wilkin BW ASW-600 home theater powered active subwoofer. The sub is fully functional and in excellent condition. It is rated 150W and it has 10" woofer. Dimensions - 14.5" Wide, 14.5" High, 17.75" Deep and the weight is 43 lbs. I will have it hooked up to the garage stereo so you can hear it before buying. The price is $250 firm, not negotiable.