Boss Audio Systems 12 in. 4600 Watt Car Subwoofers Plus Vented Sub Box Enclosure 2 x P126DVC + QBASS12 - The Home Depot
Car Amplifiers and Subwoofer Audio Sound Power Amplifier for Car Subwoofer Basstube 8 Inch Subwoofer Speaker - China High Power Subwoofers and 15 Inch Subwoofer price | Made-in-China.com