As far as all-in-one solutions go, you simply can’t beat the Complete Amplified Bass Solution. Easy to install, these amplified tubes are the perfect way to upgrade your car’s existing mobile audio system. They have a 50-watt, 100-watt or 250-watt integrated, Bass Tubes enclosure and come with straps for secure mounting, the FAST-9999 Universal Harness and the FAST-BTAH Extension Cable.