BOSS Audio Systems CH10DVC Chaos Series 10 Inch Car Audio Subwoofer - 1500 Watts Max, Dual 4 Ohm Voice Coil, Sold Individually, For Truck, Boxes and Enclosures, Use With Amplifier
DS18 IXS10.4S 10" Shallow Mount Subwoofer 1000W SVC 4 ohm Slim Car Thin Sub Bass 810005184250 | eBay
RE AUDIO - Subwoofers for Automobile: Great Power Handling and Output
Audiopipe | United States | Car Competition Audio
RE AUDIO - RE PRO
JL Audio 10WXv2 WXv2 Series 10" 4-ohm subwoofer at Crutchfield