Amazon.com: MTX TN8MS Terminator 8 Inch Micro Compact Amplified Subwoofer Enclosure for Small Vehicles with Class A/B Amplifier, Variable Bass Boost, External Bass Control, and Smart Engage Auto Turn On Circuitry :
12" 1500W Car Truck Loaded Boom Bass box Subwoofer Design for small car | eBay
Rockville RW10CA 10" 800 Watt Slim Low Profile Active Powered Car Subwoofer Sub
PYLE 12 inch 1600 Watts Car Audio Power Dual Voice Coil 4 Ohm Subwoofer Unit - Walmart.com