Subwoofers must be grounded to the machine's chassis to protect your electrical course.
Fair grounding a machine audio action is constitutive not particular to congenial sound performance however to the health of your motorcar's electrical operation. In need grounding can extract your battery and yet target short circuits in the electrical system. Since most subwoofers contain their own amplifiers, it's as important to ground the subwoofer correctly as it is to ground your power amplifier. Grounding a subwoofer correctly may take more time, but it will pay off in performance and the health of your car.
Instructions
1. Locate screw attached to vehicle chassis within about Eighteen inches of the subwoofer. This may require removing the back seat and using a wrench to remove the bolt attaching the seat belt to the chassis. Remove screw or bolt and set aside.
2. Drill a hole through a part of the chassis if there is no screw convenient. Drill on the side opposite the gas tank.
3. Use grinder or sander to remove all paint, rust and coating surrounding the screw hole. Attach ground to the screw and screw it back into the hole. Use nut to secure the screw.5.
Grind a circle the size of a quarter down to the bare metal. Wipe clean.4.
Attach a 12-guage ground wire to the same screw and run it to the negative pole of your car's battery in the case of extremely high-powered subwoofers. This will protect your car and prevent your speaker from overheating.
