Four-channel amplifiers have become an integral part of stereo systems. If you want a high-quality stereo system in your car, you must be thoughtful about the four-channel amplifier. You must be worrying about whether you should buy a four-channel amplifier or 2 channel amplifier or reluctant about the wiring of a 4 channel amp to 4 speakers and a sub. You came to the absolute right place. 

It is easy to wire it. Let us see how it can be done. First of all, you must be aware of what a 4 channel amp.

How to Wire a 4 Channel Amp to 4 Speakers and a Sub?

An amplifier is an audio instrument that boosts or magnifies weak signals and helps you listen to a high-fidelity and pristine sound. A 4 channel amplifier has two additional channels for enhanced amplification. 

Factors for considering 

If you want a safe and secure connection of an amplifier with a speaker or sound system in your car, you must look for the MIR. MIR stands for the minimum impedance rating. It is usually present on the amplifier. So, try to use the load of the speaker that is bearable by the amplifier. 

If you connect a speaker having a heavy load, several electrical hazards can occur in your vehicle’s sound system. The amplifier will not bear the extra power and then may blow up due to over-heating. 

What should be the minimum load of speakers in a connection of 4 speakers to a 4 channel amp and a subwoofer…?

The sound systems in our cars are not too integrated and heavy-duty. So, the vehicles can only withstand a load of 2 ohms on each channel of stereo devices. It can bear up to 4 ohms if the electrical wiring made is bridged. 

There are two types of connections made using speakers:

So, to make a safe and secure connection of 4 speakers and a subwoofer to a 4 channel amplifier, you will make both the parallel and series connections. 

What is bridging, and why is it beneficial?

Bridging is also known as the mono-mode. This feature is already present in the amplifier. It helps you enjoy more power due to the connection of two channels. This intensified power is not enjoyable using a single speaker channel.

In this bridging, a push-pull scenario is present inside the amplifier. All the setting is done mechanically. The signal produced by the two channels is opposite to each other. The two channels used in the setup are right and left speakers. 

Benefit of Bridging

 The built-in feature of bridging is beneficial for the peoples fond of a high-end and metallic bass. Bridging helps you to wire high-power subwoofers and speakers in the stereo system of your cars. 

Types of systems 

Usually, there are three types of systems we encounter in our audio setups. 

  1. System 1:  Connecting 2 speakers in a parallel combination to get an impedance as 2ohms x 2 + 1 wired subwoofer. In this, you get 4 ohms at the back-end channels. It is a highly recommendable system for usage.
  2. System 2: Connecting 2 speakers in a parallel combination to get an impedance as 2ohms x 2 + 1 wired subwoofer for getting a 2 or 4 ohms’ impedance at the other–end channels. It is relatively less common.
  3. System 3: Connecting 2 speakers in a parallel combination to get an impedance as 4ohms per channel + 1 wired subwoofer.

Steps to wire a 4 channel amplifier to 4 speakers and a subwoofer

First of you should carry out the bridging of the amplifier. After this, follow the connections according to the systems.

  1. System 1 

For system 1, you can connect or wire the channels at the front of each channel’s terminal to the two speakers. It means you can tie two speakers in parallel combinations. In this way, you will get an impedance of only 2 ohms per channel. 

Then, wire the subwoofer to the rear channels by connecting the positive end to the left terminal of the amplifier and the negative end to the amp’s right terminal.

  1. System 2 

The wiring of system 2 is the same as done for system 1. Make the connections by connecting the speakers’ in a parallel combination. But you have several options for a subwoofer. You can join a single 4-ohm sub or a dual 4-ohm sub. 

  1. System 3 

The speakers’ connection is also parallel in this system to get 4 ohms per channel. But in this system, attach the resistors with the speakers. It will protect the wiring from any possible hazard. The resistors prevent the circuits from blowing and over-heating.    

Resistors

Resistors used in the sound systems in vehicles are special kind of power resistors. They have several uses in electrical circuits. They have a more heat bearing capacity.

Benefits of Amplifiers

Amplifies are a great innovation in the field of sound products. You can shape the future of your listening experience with this high-end amplifier. Amplifiers have the following uses in the sound and stereo system:

Conclusion

The final thoughts are that you must connect the amplifiers having 4 channels as it is more powerful. Similarly, if you want to add crispiness to your bass, you can also add a sub along with 4 speakers in the wiring.

🏆 What should be the minimum load of speakers?

So, the vehicles can only withstand a load of 2 ohms on each channel of stereo devices. It can bear up to 4 ohms if the electrical wiring made is..

🔍 What is bridging, and why is it beneficial?

In this bridging, a push-pull scenario is present inside the amplifier. All the setting is done mechanically. The signal produced by the..

🤔 Steps to wire a 4 channel amplifier to 4 speakers and a sub

For system 1, you can connect or wire the channels at the front of each channel's terminal to the two speakers. It means you can tie..