How to Connect 4 Speakers to a 2 Channel AMP Wiring Diagram?

How to Connect 4 Speakers to a 2 Channel AMP Wiring Diagram

The impedance of the speakers and equivalent appropriation of force between the two channels simplify it to interface four speakers to a two-channel intensifier.

Both series and parallel connections for four speakers are options. Your speakers and amplifier determine which approach to employ. That must respect impedance and power restrictions on both the speaker and the amplifier.

Expanding impedance happens when we interface in series, and diminishing impedance happens when we associate in equal. You should be kept inside the enhancer’s most extreme and least impedance limitations. It might cause hurt or an awful encounter on the off chance that it is overpowered.

Now Whether to Use Parallel or Series Method

To start, compute the most extreme impedance and least impedance of the intensifier used to associate the speakers to the actual speakers.

Assuming the heap impedance is lower than the insignificant impedance, this will damage the amplifier. As a result, be certain that the load does not fall below or exceed the limitations.

That might track down the enhancer impedance in the manual or on the mark, and that can say the equivalent for the impedance of the speakers.

Presently duplicate the impedance of two speakers associated with a solitary channel by the number of channels you have. As long as the total of the impedances of both speakers falls within the limitations of the amplifier, they should be connected in a series circuit.

Think about the accompanying situation: you have two 4-ohm speakers. As you know, when we participate in a series, the capacities are duplicated. Subsequently, all out of the two powers will approach 8 ohms. Presently, assuming your enhancer can deal with 8 ohms for each channel, associating in series is alright.

If that cannot connect the speakers in series, the parallel connection technique is used.

Partition is complete of the impedances of two speakers by the result of their impedances. Assuming the reaction falls inside the boundaries, connecting the speakers equally.

The impedance may be outside of acceptable ranges in both directions, and you will be unable to connect them to the amplifier.

Whenever you’ve settled on the method, you’ll utilize it to interface them, and Assuming you follow the headings in this part, you might associate the two gadgets.

Wiring 4 Speakers in Series

In a series circuit, the positive terminal of one speaker is connected to the negative terminal of the other.

Suppose we connect two speakers from the left side in a series. Connect a wire from the amplifier’s positive terminal to the first speaker’s positive terminal (see illustration).

The negative terminal of the first speaker’s wire should be connected to the positive terminal of the second speaker here. Connect a negative wire from the second speaker to the amplifier’s left-hand negative terminal to complete this step.

As a result, the left channel of the amplifier is linked to two speakers in series on the right. Repeat the procedure for the right channel and link the two speakers together. That will link all four speakers in series with the two-channel amplifier due to this configuration.

We’ll utilize series wiring as the first method to connect four speakers to a two-channel amplifier. The next step is to connect the devices using parallel wiring.

Wiring 4 Speakers in Parallel

Consider the following scenario: We want to link the left channel simultaneously to two separate speakers. “

Interface the wire from the adverse passed on channel terminal to the negative first speaker terminal in an accompanying way: Associate a wire from the positive passed on channel terminal to the positive first speaker terminal. (An example is provided.) that will make similar connections between the corresponding terminals on the left channel and the first speaker.

Create a link between the first speaker and the second speaker in the same way. This method will allow two speakers to be connected to a single channel simultaneously.

Consequently, two amplifier channels are connected in parallel to all four speakers. The second and final method of connecting four speakers to a two-channel amplifier is in parallel wiring.

Tips For Wiring 4 Speakers To 2 Channel Amplifier

  • It would be best never to try to overtax the amplifier since this will only lead to problems.
  • Because the quality of your music depends on the amplifier’s power, increasing the number of speakers won’t have a major impact. You’ll need to invest in a better amplifier and speaker system to have better sound.
  • If you want your audio system to survive a long time, don’t cut corners when it comes to impedance testing.
  • Always maintain the load on the amplifier lower than the maximum allowed to achieve a clean sound with good bass. Full load or overload also causes distortion, which takes away all of your enjoyment.
  • If you carefully follow the directions, because that will not damage the equipment or compromise the quality of the music, you may connect four speakers to one two-channel amplifier.


Electronic devices are like an addiction to me. Years ago, I started my job at an audio/video installation co. Then I realized that I have a passion for home theaters. It is a perfect scope to share my different experiences about electronics and home theaters.

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