Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in
Pioneer TS-SWX2502 10 inch Shallow Sub VS Rockford Fosgate P300 Powered 12-Inch Subwoofer bass test - YouTube
Pioneer A-Series 12 in. Shallow-Mount Pre-Loaded Enclosure TS-A3000LB - The Home Depot
Do Shallow Subwoofers Work Better in Small Enclosures?
Pioneer/Clarion 200-watt Compact Bass Package Includes Pioneer TS-SW2002D2 shallow-mount 8" subwoofer, Pioneer UD-SW200D sealed enclosure, and Clarion XC2110 mono sub amp at Crutchfield