10 Inch Car Subwoofer Speaker - 500 Watt High Powered Car Audio Sound Component Speaker System w/ 2 Inch High-Temperature Kapton Voice Coil, 85.6 dB, 8 Ohm, 60 oz Magnet - Pyramid PW1048USX
2 Rockville RVP18W8 2400w 18" Pro Subwoofers 8-Ohm Raw Sub Woofers 90 Oz Magnets - Walmart.com