If you’re wondering how to connect a car amplifier to a wall plug, there are a few things you should know. Before you begin, you’ll want to make sure that your vehicle has the proper electrical power to operate your new amplifier. For that purpose, you’ll need to hook up your battery to your car’s amplifier. If it’s an aftermarket model, you’ll need to route the wiring from the engine compartment to the amplifier.
Ground loop isolators
A ground loop is the most common cause of noise and interference. A ground loop can be as simple as a rubber band affecting the brakes when you turn the handlebars. If it is connected to a wall outlet, it can make an annoying buzzing or humming noise. Ground loop isolators will reduce that noise. A ground loop isolator works by plugging into the negative terminal on the amplifier.
Reroute speaker wires to avoid interference
Whenever possible, reroute speaker wires to avoid interference when connecting your car amp to a wall plug. Speaker wires are made of stranded or solid copper and have a PVC jacket to prevent interference. If you’re connecting multiple car amps to a single wall outlet, you’ll want to use the most robust speaker wires available.
Checking for continuity on the ground wire
When connecting a car amp to a wall plug, the first thing to do is to check the ground wire for continuity. The copper wire has a maximum temperature of 140 degrees F (60 degrees C). When the ground is connected properly, the voltage applied to the load is equal to the voltage applied to the battery. This is because the metal bodied car uses the body as its ground path, while the plastic-bodied one has a separate ground wire. A shorted ground wire has the same effect as an open switch, preventing current flow.
Choosing between a car amp and a house amp
The difference between a car amp and a house amplifier lies primarily in the power supply used. House amplifiers use the same power supply as a car and will be more efficient, but they are designed to work on a lower impedance. A car amplifier is typically rated for 14,4V, while a house amp uses a higher voltage, 12V. There are pros and cons to both types of amplifiers.
Checking for underpowered amps
Underpowered car amps may have various causes. For example, they may not produce the volume the car owner desires. Or, the speakers may crackle or pop. In both cases, you need to check the wires to determine if any of them are loose or damaged. If you notice that a wire is loose or damaged, you can easily replace it. The problem might also be caused by a faulty amplifier or alternator.