DS18 PU11010” Shallow Subwoofer Enclosure for Pickup Trucks Bring powerful bass to your truck without sacrificing valuable cabin space! DS18’s PU110 is a sealed, low-profile subwoofer enclosure pre-loaded with a high-output 10” subwoofer built for deep bass in a compact package. Built for daily use and easy integration, the PU110 is a perfect match for any truck where space is tight. Deep Bass The PU110 is engineered with a sealed box design that fits under or behind seats in most trucks. With 3