How to Connect 4 Speakers to a 1 Channel Amp In Car

Last Updated on December 9, 2023 by CarAudioHunt

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Embarking on the journey of improving your car's audio system can be both exciting and daunting. When it is about how to connect 4 speakers to a 1 channel amp, it leaves you pondering what to do.

But you better not worry! We have this guide to help you navigate the connection process in different ways. It will give you the knowledge and confidence to get started.

Let's start with the goal of creating an immersive and dynamic listening experience in your car!

You should get your hands on the following stuff to experience a hassle-free connection process.

  • Right Four Speakers: You have to choose 4 speakers that match the output of your monoblock amplifier in terms of power handling and impedance.
  • Appropriate gauge speaker wire: A thicker wire (lower gauge number) is generally better for higher-quality sound and longer wire runs.
  • Wire strippers: You will need them to remove the insulation from the ends of your speaker wires.
  • Electrical tape or connectors: It will insulate and secure wire connections to prevent short circuits, especially in a car's tight and often metal-filled space.
  • Screwdriver: It helps you remove and replace your car's speaker panels or tighten connections on the amplifier.

3 Ways of Connecting 4 Speakers To A Mono/1 Channel Amp

You will have first to measure and cut the speaker wires to get them enough length to reach from the amp to each speaker comfortably. Then, stripping the end of the wires is crucial to expose the copper of the wire.

After preparing the wires, there are 3 main ways to hook up your 4 speakers with a monoblock amp. We’ll go through them in detail to let you understand them better.

Way 1: Connecting 4 Speakers in Series

You should connect one end of a speaker wire to the amplifier’s positive terminal. The next step is to attach the other end to your setup's first speaker’s positive terminal.

The essence of series wiring lies in connecting one speaker's negative terminal to the positive terminal of the next. So, you have to take another piece of speaker wire next. You have to wire one end to the first speaker’s negative terminal and hook up the other end to the second speaker’s positive terminal.

Then, you must repeat this process for the third and fourth speakers. Remember, each time, you will be connecting the negative terminal of the currently connected speaker to the next speaker’s positive terminal.

Connecting 4 Speakers to Mono Amplifier in Series

You will have to get the highly capable 16-ohm impedance mono amp if you want to connect it to 4 speakers having 4 ohms impedance each.

Way 2: Connecting 4 Speakers in Parallel

You can first start with the positive terminal. Take one of your prepared wires and connect one end to the positive terminal of the first speaker. Then, you have to focus on connecting this wire's other end to the amplifier's positive terminal. In the same way, you are required to hook up another wire’s one end to the same speaker’s negative terminal and the other end to the amp’s negative terminal.

After getting done with the first speaker, the process is quite stress-free. You have to follow and repeat the same process for the other 3 speakers. Because of this connecting one speaker after another, this connection type is known as a “daisy chain” to many people.

Connecting 4 Speakers to Monoblock Amp in Parallel

In case of a parallel connection, even if all the speakers are 16 ohms, a mono amp of 4 ohms will work for you. However, you can get a higher ohm mono amp if you want.

Keep your eyes on whether the wires are neatly routed and organized to prevent tangling or damage. However, it is not the best decision to use this process as it puts too much pressure on the amplifier.

Way 3: Connecting 4 Speakers in Series-Parallel

In a series-parallel connection, you first create two separate pairs of speakers connected in series. What it means is that within each pair, one speaker is connected to the next in a series formation.

You have to first attach the first speaker’s positive terminal to the amplifier’s positive one. Then, take another piece of wire to connect the first speaker’s negative terminal to the second speaker’s positive terminal. Afterward, the process is the same as of the series connection one. You get to repeat this process for the third and fourth speakers.

Now that you have two series pairs, the next step is to connect these pairs in parallel to the amplifier. It involves combining the positive terminals of each pair and doing the same with the negative terminals.

You need to connect the second speaker’s negative terminal in the first series pair to the amplifier’s negative terminal. Similarly, attach the fourth speaker’s negative terminal in the second series pair to the same negative terminal of the amplifier.

Connecting 4 Speakers to Mono Amp in Series-Parallel

You will require a mono amp of at least 4 ohms, but you can get higher ohms for 4 speakers having 4 ohms.

Post Connection Checks

With all the connections made, you should start by powering your system at a low volume. You can then gradually increase the volume while listening attentively to the sound output from each speaker. It is a pivotal step to ensure your connection process goes smoothly.

The EndNote

Connecting four speakers to a one-channel amp can be a rewarding project that enhances your car audio experience. Following the given easy steps will help you create a sound system that satisfies you. We expect you to have a safe and successful connection process with the help of this guide. Good luck!

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