Cerwin-Vega Mobile Vega Series DVC Subwoofer (12-Inch, 1,300 Watts, Dual 2 Ohms/4 Ohms) - Walmart.com
Pioneer A-series Shallow-mount Pre-loaded Enclosure (12-inch Subwoofer) in the Mobile Audio department at Lowes.com
Amazon.com: BOSS Audio Systems BASS10 Amplified Car Subwoofer - Low Profile, 10 Inch Subwoofer, Remote Subwoofer Control, for Vehicles Needing Bass with Limited Space, Remote Subwoofer Control : Electronics
Audiomobile EVO 2410 10" Subwoofer - Single – Audio Intensity