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Gain - The amount of amplification used in an electrical circuit.
Gauge (wire) - The diameter of a wire. The higher the number, the thinner the wire.
Graphic (equalizer) - Refers to a type of equalizer with controls that create a pattern representing a graph of frequency response changes.
Ground - An electrical line with the same electrical potential as the chassis of the vehicle, most commonly negative 12 volts DC.
Ground Loop - The condition created when two or more paths for electricity are created in a ground line, or when one or more paths are created in a shield or an audio cable. This can create undesirable noise such as a high pitched whine when the vehicle is running or p
Ground Potential - In an automobile this is the electrical potential of the vehicles chassis. A circuit, terminal or chassis is said to be at ground potential when it is used as a reference point for other potentials in the system.