The EP125 125-watt powered subwoofer is Axiom's answer to a small sub with big sound! Utilizing exclusive Vortex porting and a pure cast-aluminum basket 8-inch woofer, this system produces excellent deep bass output. This is a great subwoofer to extend bass response with any of our bookshelf speakers - and great first step to home theater. Axiom's seamless cabinetry makes this a great-looking speaker. The EP125 comes with spikes for carpet use, and anti-resonance feet for floor use. These feet ensure that the speaker stays put while the rest of the room vibrates around it! Perfect for small to medium rooms.