Metra Line Output Converter: Wiring Diagram

What Is a Line Output Converter?

A line output converter (LOC) is an electronic device used to convert a higher speaker-level signal into a lower preamp-level signal that can be sent to an amplifier. LOCs are designed to work with factory radios or aftermarket radios that do not have dedicated low-level outputs for amplifiers. They are also known as high-low adapters, hi-lo converters, and speaker-to-line converters.

Why Do You Need a Line Output Converter?

Most modern car audio systems no longer use analog signals. Instead, many now use digital signals, which are sent from the vehicle's head unit to the speakers. These digital signals often cannot be used directly by an amplifier, so an LOC is needed to convert them into a low-level analog signal. This allows you to connect your aftermarket amplifier to your factory radio without having to replace the head unit.

How Does A Line Output Converter Work?

An LOC works by taking the higher-level signal from your head unit and converting it into a low-level signal that can be sent to your amplifier. This is done using a series of components, such as transformers, resistors, and capacitors. Together, these components are able to reduce the output voltage of the higher-level signal to a level that is suitable for an amplifier.

What Are The Components Of A Line Output Converter?

An LOC consists of several components, including a transformer, resistors, capacitors, and high- and low-level inputs. The transformer is the primary component of the LOC and is responsible for converting the higher-voltage signal into a lower-voltage signal. The resistors and capacitors provide additional filtering to ensure the signal is clean and free of any distortion. The high- and low-level inputs on the LOC allow for easy connection to the head unit and amplifier respectively.

How To Install A Line Output Converter?

Installing an LOC is relatively simple and can be done in just a few steps. First, you need to connect the high-level input on the LOC to your head unit, usually via the speaker-level outputs. Next, you need to connect the low-level output on the LOC to your amplifier. Finally, you need to connect the power and ground wires to the LOC. Once this is done, your LOC is ready to be used.

How To Wire A Line Output Converter?

When wiring an LOC, it is important to follow the manufacturer's instructions carefully. Generally, the high-level input of the LOC should be connected to the speaker-level outputs on the head unit. The low-level output of the LOC should be connected to the high-level input of the amplifier. Additionally, you will need to connect the power and ground wires to the LOC in order to power it.

What Are The Color Codes For Wiring A Line Output Converter?

The color codes for wiring an LOC will vary depending on the manufacturer, but most LOCs will use the following colors: red for power, black for ground, white for the high-level input, and yellow for the low-level output. It is important to pay attention to the specific colors used, as incorrect wiring could result in damage to your system.

What Are The Potential Issues With A Line Output Converter?

Although LOCs are generally reliable, there are some potential issues that could arise. The most common issue is that of noise or distortion, which can occur if the LOC is not installed properly and the signal is not filtered correctly. In addition, if not properly wired, a LOC can cause feedback and other related problems.

How To Troubleshoot A Line Output Converter?

If you are experiencing issues with your LOC, there are a few troubleshooting steps you can take. First, check that all connections are secure and that none of the wires have become loose. Additionally, make sure the power and ground wires are connected properly. If the problem persists, you may need to check the settings on your LOC to make sure they are correct. Finally, if the issue still persists, you may want to consider replacing your LOC.