Q Power FORD102009DF Dual 10" Down Firing Subwoofer Enclosure Box for 2009-2016 Ford F-150 Super Crew Cab Trucks Fits 2009-2016 Ford F-150 Super Crew Cab Trucks Dual 10" Under Seat Down Firing Unloaded Subwoofer Box Constructed out of Premium 5/8" MDF Independent Subwoofer Chambers for Maximum Bass Subwoofer Mounting Depth: 5" - Subwoofer Mounting Hole Cut-Out: 9"