How to Run Cover 4 Ohms With Two Speakers – Complete Guide

When you want to cover 4 ohms with two speakers, you need to connect the speakers in series or parallel depending on the method you feel is best for you. Running the two speakers with four ohms means that if you turn on one speaker, all the speakers will be on the same way when you turn them off and also, when you control the volume, you will do the same thing on one speaker only.

If you need to regulate the speakers, you will have to get a speaker selector switch that you will use to perform the actions differently with the speakers. Therefore, when you want to connect the two speakers with a four ohm, you need to have a large area for the activity and the speakers you need to connect.

Many people worry about getting rid of the two speakers they have, but here is the solution since the article below will discuss the best ways you can follow when acting after that are the frequently asked questions, and lastly, the conclusion.

How to cover a 4-ohm speaker with two speakers

how to run xover 4 ohm with 2 speaker

The best way of running two speakers with the same ohm is by connecting them in series or parallel. The choice of which type of connection is the best among the two above depends on the impedance of the speakers. Check the back of the speaker since most manufacturers record the impedance at the cabinets. In most cases, the speaker impedance ranges from 4 ohms, 6 ohms, and 8 ohms; if it is not at the back of the speaker or speaker cabinet, you should check it on the manual paper or at the specifications of the speaker which have a certain symbol.

For our case here, the speaker is said to be 4 ohms which is best to use the series method of connection for safety purposes. However, you can still use the parallel method of connection if it fits you. Below are the steps of connection in both cases.

Techniques to use;

Methods functionsEssential products
Series connection        uses less power  
Parallel connection       easy to connect  

1. Parallel connection

Parallel connection

In a parallel connection, the two speakers with 4 ohms will reduce the impedance to 2 ohms, which will not be good with your connection. That is why it is good to check the impedance of the speakers before choosing the type of connection to use. The connection reduces the ohms but allows the speakers to get a proper attachment with the good connection of the amp to support the connection.

i. Switch off the amplifier and plug the negative terminal to the same connection point on one speaker.

ii. Fix the negative input of the first speaker to the second speaker that means that the two cables from the first speaker will all be negative.

iii. Plug the positive terminal of the positive amplifier into the positive terminal of the first speaker

iv. Fix the positive first speaker to the positive on the second speaker, and that you will see two wires from the first speaker, which will all seem to be positive.

2. Series connection

Series connection

Series connection is good with speakers containing the 8 ohms or below since in the series connection; there is the total impedance counted as the amperes. With a series connection, the two speakers with 4 ohms, like in this case, will add the total impedance to 8 ohms since most amplifiers can work with six or more ohms when the connection is in series.

Choose to check on the pictures when trying to use this type of connection to better understand the connection. Below are the steps to follow when trying the connection:

i. The first step here is connecting the speaker directly to the amplifier. What you will need to do is take the speaker wires in both the two speakers and fix them directly to the amplifier.

ii. Fix a wire from one of the speakers into the positive terminal and the other wire to the negative terminal such that you will later take the two wires and join them together so that they can form a shape that is triangle in shape.

iii. If you want the speakers to be connected to the amplifier, but you want one speaker to be connected to the other one, you will repeat the same process.

iv. The only thing you need is to cut one wire so that it becomes short for closeness with the speaker.

v. After that attach them in series so that it can wire the second speaker and later use the other wires to link your speakers to the positive and negative terminal of the amplifier.

You might be interested to read also our another comprehensive article of: How to Run a 4-Ohm Speaker Load on a Deluxe Blues Reissue and How to Test a 4 Ohm Speaker- Step by Step Guide

Frequently asked questions;

  • Is it bad if the speaker impedance is very low when running?

Using a speaker with lower impedance than the amplifier is bad, yes since it can cause the amplifier to use much current that the normal amount it should work with.

  • How do the speakers share power with their connection?

With parallel connection, the speakers share the power of all the load they have by giving each half of the normal value since in this type of connection there is consumption of more power while in series wiring, the speakers share their power by giving each double the resistance since they receive less power since all the total power is always lower since the speakers consume less amounts of power.


When running a cover for a 4 ohms speaker with two speakers, you need to make a connection between the speakers for them to run. First, you need to check on the type of connection you are using depending on the ohm amount of your speaker. In this case, we only have the series and parallel type of connection.

 The two methods are both good for connection when pairing two speakers but in this case with the 4 ohm speaker, the best type of connection you can check is the series method since its ohms do not reduce. The good thing with the connection is that you can use one speaker to control both the two devices. 

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