Audiopipe Txx-bdc4-12d2 12 Inch 2,200 Watt High Performance Powerful Dual 2 Ohm Dvc Vehicle Car Audio Subwoofer Speaker System, Black (2 Pack) : Target
Amazon.com: Audiopipe APSB-1299PP Dual 12 Inch Car Audio Subwoofer Speakers and Sealed Enclosure, 2 Channel 500 Watt Amplifier, and Wire Installation Kit : Electronics
BOSS Audio Systems CXX12 Chaos Exxtreme Series 12 Inch Car Audio Subwoofer - 1000 Watts Max, Single 4 Ohm Voice Coil, For Truck, Boxes and Enclosures, Use With Amplifier - Walmart.com