Kicker 43TCWRT104 CompRT 10" 4-Ohm Subwoofer in Thin Profile Enclosure Combines a 10&quot; subwoofer with a 10&quot; passive radiator to deliver deep, smooth bass in a thin-profile enclosure Handles 400 watts of continuous heart-pounding bass Built with thick MDF for strength Black stylish carpet covers the complete enclosure Recessed, heavy duty spring loaded large hole metal speaker terminals accept heavy gauge speaker wire