Audio Wiring / September 8, 2018 / Raquel Dufour.
Sometimes a power amplifier comes equipped with unique features. The car audio crossover can add to a car amplifier. A car crossover allows the amplifier to divide the music by frequency. The split signal becomes strengthened by the amplifier and then leaves the amp and proceeds to another part of the car speaker system.
If you are not comfortable with electrical wiring, do not attempt this installation. Have your stereo installed by your car audio retailer. Do it once, do it right! Don’t take the easy, shortcut way to do things. Do it correctly the first time. Believe me; the “shortcut” will cost you later in both time and money. Run your power and ground wires on the opposite side of the RCA and remote wires; this will help the overall sound quality of your system.
Begin connecting components using 18-gauge or 16-gauge wire on the speakers. The cables run from each speaker to the amplifier. The longer the run, the more resistance on the fence. The larger the gauge size of the cable, the less strength.
Amplifiers have class according to their efficiencies. Class D car amps use transistors to control power distribution within the amplifier. When the voltage in the amplifier rises to a certain level, then the transistors in a Class D car amp will automatically turn off. This ability of the transistors to turn on and off allows the Class D car amp to draw less current than the Class A or AB amplifier. Because it draws less current, the Class D car amp also produces less heat. In other words, it is more efficient.