How To Wire Speakers With 4 Terminals?

How To Wire Speakers With 4 Terminals?

Finding the right speakers may seem daunting with so many products on the market. For those who want high-quality speakers but don’t want to break the bank, there are a lot of options for you out there. However, wiring most speakers can be a daunting task, especially if you have no idea where to start at. If you want to wire speakers with 4 terminals, there are a couple of things that you should keep in mind. 

Whether you need two speakers for your desktop computer or four for your home theatre, these tips will help you find something that fits your needs without resorting to cheap sets that might not give you the best sound quality. You can arrange the speakers in multiple ways but knowing the right way to wire speakers with 4 terminals needs some knowledge. 

Steps To Wire Speakers With 4 terminals

In speakers, the most popular configuration is bi-wiring which allows a speaker to have two terminals. This enables the speakers to generate quality audio for you and provide an overall better experience. However, if you are getting a bi-amped speaker, it will probably have multiple terminals like the ones we are talking about here in this guide.  

In the guide below, we will tell you about the steps that you need to follow if you want to wire speakers with 4 terminals: 

Step 1: Pick the Right Speaker

First, you need to decide which speaker is right for your needs. There are a few things to consider, such as the size of the speaker that you need and the type of music you usually listen to. If you’re not sure, it’s always a good idea to consult with a professional. Once you’ve picked the right speaker, it’s time to move on to the next step. 

Step 2: Identify the Terminals of Your Speaker

Locate the positive and negative terminals on your speaker. The positive terminal is usually red, while the negative terminal is black. There may also be a third terminal, typically white and used for grounding. 

If unsure which is which, consult your speaker’s manual or look for markings on the speaker itself. To connect two speakers in parallel (the typical configuration), each speaker will need its wires connected to both the positive and negative terminals. 

Connect one set of wires to the positive terminal on one speaker, then connect another to the same positive terminal on the other speaker. Then connect one more set of wires to each negative terminal-one connecting it to the ground and another to the first speaker’s negative terminal. 

Step 3: Turn off your speakers

Turn off your speakers before you begin. This will make sure that no accidental short circuits will occur. Once you have turned off your speakers, take a look at the back of the receiver or amplifier to make sure that you have plugged them. You should see four exposed metal terminals – these are the speaker output jacks. 

The four jacks are usually color-coded, with red and black being the most common colors. The red jack is typically positive (+), while the blackjack is typically negative (-). In some cases, you can use a white or green jack for the ground (GND). 

Read to know more about Are speakers loud in parallel or in series?

Step 4: Remove the bi-wire bridges 

Before you start wiring your speakers, you’ll need to remove the bi-wire bridges. These are usually small metal plates or strips connecting the two binding posts. Once you’ve removed the bridges, you can begin securing your speaker wire. 

Step 5: Grab the Wire & Connectors

Now that you have your speaker and everything you need, it’s time to start connecting everything. The first thing you’ll need to do is grab the wire. If you’re using speaker wire, get the correct gauge. Most home theatre systems use 16-gauge or 18-gauge speaker wire. Once you have the wire, cut it to the length you need.

Step 4: Prepare the Connection Points

Now that you have your speaker wire and AV receiver, it’s time to prepare the connection points. Strip about half an inch of insulation off the end of each speaker wire using a wire stripper. Untwist the copper strands and ensure they’re not touching each other. 

There should be a small hole on each terminal where you can insert the speaker wire. Put the speaker wire into the hole and twist it clockwise to tighten. Make sure the connection is secure by tugging on the speaker wire (it shouldn’t come out easily). Repeat this process for each speaker. 

Step 5: Connect amplifier channels

Once you have your amplifier and speaker cables, it’s time to connect them. Begin by connecting the positive (red) terminal of the amplifier to the positive (red) terminal of the left speaker. Then, connect the negative (black) terminal of the amplifier to the negative (black) terminal of the left speaker. Repeat this process for the right speaker. Finally, connect the ground (green) terminal of the amplifier to the ground (green) terminal of either speaker. 

Step 6: Adjust the control levels

If you are done setting up your speaker system, it’s time to start playing around with the control levels. The first thing you’ll want to do is adjust the volume. If you’re using an amplifier, you’ll want to make sure that it’s turned all the way down before you start adjusting the levels on your speakers. 

Once you have the volume where you want it, you can start adjusting the treble and bass levels. If your system has a graphic equalizer, you can use that to fine-tune the sound of your system. Finally, if your system has a subwoofer, you’ll want to adjust that level as well.

Step 7: Connect some speakers

Now you need to start connecting the speakers. For that first, connect the left speaker to the front speaker output of the receiver. Continue doing the same on the other side of the speaker and your wiring process will be completed in no time. 

Read: Coaxial Speaker Cable-The ultimate guide

What is Bi-Amping? 

Bi-amping is the practice of using two amplifiers to drive a single speaker. The benefits of bi-amping include increased power handling, headroom, and sound quality. However, bi-amping also requires more equipment and setup time than traditional speaker wiring. 

Bi-amping involves splitting the speaker signal between two amps: one amp for low frequencies (bass) and one amp for high frequencies (treble). You need an active crossover that splits your audio signal into its bass and treble components. 

How do you wire a 4 pin speaker connector?

There are four pins on a speaker connector: positive (+), negative (-), left, and right. To wire a 4-pin speaker connector, you’ll need to connect the positive and negative wires to the corresponding pins on the speaker. Then, connect the left and right wires to your amplifier or receiver’s left and right channels. If you’re not sure which is which, consult your amplifier or receiver’s manual. 

Why do my speakers have 2 sets of terminals?

If your speakers have two terminals, they can be bi-wired or bi-amped. Bi-wiring involves connecting the low-frequency signals to one set of terminals, and the high-frequency signals to another. This can provide a clearer sound, as it minimizes interference between the two signal types. 

Bi-amping involves using separate amplifiers for the low and high-frequency signals, which can provide a clearer sound. If you’re not sure which method to use, consult your speaker’s manual or a professional. 

Why would I need 4 wire speaker wires?

You might need a four-wire speaker wire if you’re looking to create a surround sound system in your home theatre. Four-wire speaker wire allows you to connect two sets of stereo speakers to a single amplifier, creating a more immersive sound experience. 

Also, you can use the four-wire speaker wire to bi-amp your stereo speakers, meaning each speaker would have its own dedicated amplifier. This can also improve sound quality. If you’re unsure whether you need a four-wire speaker wire, consult an expert before making your purchase. 

Why do Klipsch speakers have 4 terminals?

The Klipsch speakers have four terminals because they are meant to be bi-wired or bi-amped. This means you can connect two separate amplifiers to the speaker, one for the low and one for the high frequencies. 

Alternatively, you can use a single amplifier and run two sets of speaker wires to the speaker, one for the low and one for the high frequencies. Doing this can sometimes improve the sound quality of your system. 

Which Speaker Terminals to Use? 

If your speaker has four terminals, you can use any two of them to create a connection. The most common configuration uses the + and – terminals, also known as the red and black terminals. However, you can also use the L+ and L- or the R+ and R- terminals. If you’re not sure which ones to use, consult your speaker’s manual or look for a diagram online. 

Once you’ve identified the correct terminals, connect one end of each wire to each terminal (positive on one terminal and negative on the other). Be careful not to let the bare ends touch each other because this will cause a short circuit that could damage your equipment. Next, strip off about an inch of insulation from each wire and twist the wires together to stay connected.

After crimping metal sleeves over the wires near where they meet to prevent loose strands, strip off another inch of insulation at the other end. Strip only enough insulation so that you have access to a single strand at a time when crimping metal sleeves over them. Do not strip too much insulation. Next, place metal crimps over these exposed strands and use pliers to squeeze tightly until it covers all six strands together inside it. 

Finish by twisting the metal sleeve a few times before trimming any excess plastic. You should now have two metal loops facing opposite directions with six-stranded wires underneath. Tighten these loops firmly by holding onto both edges while pulling in opposite directions, then screw down with a Phillips head screwdriver to tighten things up even more. Don’t tighten too hard, though. Now you are ready to install your speaker using screws or clips as necessary for stability and electrical safety. 


There are a few different ways to wire speakers with 4 terminals. The most common way is to use two wires for the positive and two for the negative connections. This will give you the best sound quality. 

Another way is to use one wire for the positive connection and three wires for the negative connection. This is called bridging and can give you more power. Finally, you can use four wires for the positive connection, and no wires for the negative connection. This is called bi-amping and can give you even more power.

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