Audio Wiring / September 5, 2018 / Lillian Chastain.
The gauge of the power cable is determined by the specifications of the amplifier you are using. The owner’s manual that comes with the speaker will probably tell you what gauge cable to use. If it does not, consult with a tech advisor from the manufacturer of the amplifier to find out.
Gather the following tools: knife or wire cutters, solder, and solder gun, crimps, stripper, screwdriver, screws. Plan the installation. Know where you intend to put all the components. For example, the radio commonly placed in the factory opening in the dash, the speakers are put in the factory openings in the front doors, and the rear speakers put in the factory openings on the back deck. The equalizer goes in the factory opening below the radio in the dash. An amplifier with built-in electronic crossover usually goes in the trunk. The car’s battery, which powers the system, is commonly under the hood, usually on the passenger’s side of the vehicle.
If you are using passive crossovers with the component speakers in the front and rear of the car, hooking up these crossovers can also affect the ohms load seen by the amplifier. Hooking up the passive crossovers’ positive and negative properly can be a concern. Follow the speaker manufacturer’s instructions carefully.
A visit to a store that sells parts for a car audio system will show that the car amp can be classified by more than just efficiency. The car amp is also classified according to the number of channels which send signals into the amplifier, where those signals then have their power increased. In a mono amplifier, the amplifier adds power to the signal from a single channel.