It is normal to want better sound quality from our sound system, and there are different ways we can achieve this. One easy way to get better sound quality is by increasing the number of speakers in our setup.
You can add up to four speakers when using a 2 channel amplifier, and there are three ways you can do it. You can connect them in parallel, series, and the speaker connector switch.
We are here to answer your question if you’re wondering how to connect 4 speakers to a 2 channel amp. This post will show you easy ways to connect 4 speakers to a 2 channel amp and tips to help you do it better.
Connecting 4 Speakers to a 2 Channel Amp
Connecting 4 speakers to a 2-channel amp is possible if you have the right knowledge. It is also very possible to overload your amplifiers if you try to connect more speakers than they can take.
A 2 channel amplifier has two independent outputs or separate channels and is designed to hold two speakers conveniently. However, with some technical know-how, you can set up four speakers and connect them to the amplifier.
There are three key methods for setting up 4 speakers on a 2 channel amp, and we have them ready for you.
Affiliate Disclosure: AmplifierZone is reader-supported. As an Amazon Associate, we may earn commissions from qualifying purchases at no extra cost to you.
How to Connect 4 Speakers to a 2-Channel Amp
Connecting in Series
One convenient method is connecting your speakers in series to the amplifier. When we say connection in series, it simply means all the components are arranged such that the same amount of current flows through them.
This connection means that the same value of current in speaker A will flow through speaker B all the way to speaker D.
Connecting in series is probably the easiest to connect multiple speakers, but it is not the best choice. Connections in series have low voltage, and each appliance in the connection must do more work. Continuously using your speakers in series can eventually wear them from overheating and increased internal resistance.
Let’s look at how to connect in series:
First, you need to know where the positive terminal is from the negative terminal. Both your speakers and amplifier have their terminals, and to ensure a successful connection, it is important that you can tell these terminals apart.
Once you have the different terminals, you can start connecting them accordingly. You want to connect them such that the line starts with the positive end of your amp, through the four speakers, and back to the amp’s negative terminal.
Let the positive end of the first speaker stay in contact with the positive end of the amplifier, then connect the first speaker’s negative end to the second speaker’s positive end. Keep linking the opposite terminals of one speaker to the next until the negative end of the fourth speaker is in contact with the negative end of the amp.
At this point, you successfully connected your speakers and amplifier in series.
Connecting your speakers in series is straightforward, but remember that you’re giving your speakers more work, and they can overheat over extended use. However, the sound quality will improve.
Connecting in Parallel
Connecting in parallel is the opposite of connecting in series. In this case, different current values flow through each speaker.
The speaker’s form a loop in the series connection, and the current flows directly through all the components. However, the parallel connection directly links each speaker to the amplifier.
Connecting in parallel gives better sound quality than series, but it also has the downside of stressing the amplifier. If you connect four speakers in parallel to an amp, we advise you get one with a high power rating.
How to connect in parallel:
As we did in the earlier method, you first have to find the speakers’ and amplifiers’ negative and positive terminals. Once you’ve done that, connect the positive end of your amplifier to the positive end of the first speaker, and connect the negative end of the amp to the negative terminal of the first speaker.
Once you’ve connected your first speaker, do the same thing for the second to fourth, and ensure that they are all connected directly to the terminals of the amp.
This method puts a heavy strain on the amplifiers since it feeds four speakers directly, which is why we recommend a good power rating.
Speaker Selector Switch.
Using a speaker selector switch is the easiest option for multiple speakers with a 2 channel amp. A speaker selector switch is a gadget that connects speakers to the amplifier.
The speaker selector switch is designed to hold a lot of loads, and it can bear the power of four speakers. The speaker selector switch makes it easy for you to connect your speakers to an amp with less power and protects the other gadgets from danger.
Furthermore, some selector switches give you control over the volume of each speaker it controls.
How to set up a speaker selector switch:
As usual, get familiar with all the switch, amp, and speakers terminals. First, you have to connect the switch to the amplifier via the terminals. Positive goes to positive and negative to negative.
Next, you have to connect the speakers to the switch, and you can do that by connecting the positive terminals on the speaker to those on the switch and the same for the negative terminals.
Now that we’ve looked at the three ways you can connect 4 speakers to a 2 channel amplifier, let’s look at some important points.
Points to Note When Connecting 4 Speakers to 2 Channel Amp
