Pioneer TS-SW3001S4 12 inch shallow mount subwoofer - TS-SW3001S4 from Pioneer
ALPHASONIK AS10DF 10 inch 1200 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure: Buy