How To Set Crossover Frequency For Speakers

Crossover frequencies are important because they help separate the low-frequency information from the high-frequency information.

When you play music, the sound waves travel up and down the length of the speaker cone. At some point along the way, the sound waves get reflected back towards the listener. This reflection is called a “reflected wave.” 

How To Set Crossover Frequency For Speakers

It can be a little confusing to understand it all, but we’ll go through the important things that you need to know about crossover frequencies with our handy guide!

What Is Crossover Frequency?

A crossover is an electronic or electric system designed to split the sound from a musical source and provide the best output for a particular speaker.

Most speakers that sound great come with a built-in crossover. Crossover frequency refers to the sound frequency at which a speaker‘s output is cut by three decibels ( -3 dB ).

Crossover frequencies are the points where two signals cross over each other. A crossover filter works by creating an artificial signal that crosses over the original signal at a specific point.

This allows us to create a new signal that doesn’t contain any frequencies that we want to eliminate.

A reflected wave travels back down the speaker cone again, but this time, it hits the woofers, which move air backwards.

This causes the woofers to produce a different tone than the original sound wave. In other words, the woofers create a new sound wave. 

That new sound wave travels back up the speaker cone, and then gets reflected back down the speaker cone. This process repeats until the sound reaches the tweeter, which sends out the high-frequency sound waves.

The problem with this setup is that the woofers also send out low-frequency information. This is why we need a crossover.

The crossover filters out the low-frequency information sent by the woofers, allowing the tweeters to send out only the high-frequency information (which is what we want).

Crossover frequencies are the points at which two speakers connect together. They are measured in Hertz (Hz).

The higher the frequency, the more bass you get. The lower the frequency, the more treble you get. There are three different types of crossover frequencies: high pass, low pass, and band pass.

High pass means that the speaker connects only to the left side of the room. Low pass means that the speaker only connects to the right side of the room. Band pass means that the speaker mixes both sides of the room.

When determining your crossover frequency, remember that the higher the frequency, the less bass you’ll get.

The lower the crossover frequency, the more treble you’ll get. Also, remember that the closer the crossover frequency is to the speaker driver, the better the sound quality.

Things To Know

Crosstalk is when two speakers play different frequencies simultaneously. This causes distortion and poor sound quality.

Crossover frequency refers to the point at which the left and right channels are split. A crossover is used to separate the left and right channels of audio signals.

A crossover is an electronic or electric system designed to split the sound from a musical source and provide the best output for a specified speaker.

Most speakers that sound great come with at least one type of crossovers built-in. The crossover frequency is used as the reference point at which a speaker outputs -3db.

Which Crossover Types Are The Best?

Crossover is an important part of any audio system. You can get crossovers for less than $100.

But if you want to upgrade your system later, you might want to consider buying a separate outboard crossover instead of mixing it into your preamp.

Active Crossovers

Each speaker has its own amplifier channel, allowing more power and dynamic range than if it were connected directly to the main amplifier.

This allows the speakers to be used in different ways, such as having the front speakers play softer music than the back speakers, or using the front speakers for movies while the rear speakers handle music.

An active crossover cuts out the frequencies that aren’t needed by the speakers. A passive crossover does not cut out frequencies.

Active crossover requires 12 volts, ground, and power to work. It is difficult to install, but it is worth it if you want to hear high-quality sound.

With this setup, the subwoofer, midrange, and tweeters get more power than before. You can now control the whole frequency range of your speakers, giving you better control over your music.

An active crossover cuts off anything unwanted by using an amplifier that boosts or reduces certain frequencies.

Volume controls allow you to adjust the sound balance from all speakers. Equalizers can be used to fine-tune the sound.

Active crossover systems require 12 volts, ground, and power to operate. They also need some sort of connection to the amplifier.

However, these systems are very easy to set up because there are many different ways to connect them to an amp. These systems are great for keeping your speakers sounding their best.

Passive Crossovers

Passive crossovers do not require a connection to a power supply. In-line crossovers sit in the middle of an amplifier and the speakers. Component crossovers fit between the amplifier and the receiver.

Passive crossovers do not require a connection to a power supply to function. In-line crossovers sit between the amp and the speaker, while component crossovers fit in the middle of the amp and the speakers.

These crossover components are designed to provide the best sound quality possible without any additional tweaking. They are easy to install and set up.

A passive crossover system separates the audio signals into different frequency ranges.

The high frequencies travel to the tweeter, and the lower frequencies travel to the woofer. You can adjust the volume of the tweeter by reducing the amount of power going to the tweeter.

A passive component crossover will waste energy. Speakers do not maintain fixed impedance as they amplify signals.

This can cause inconsistencies with the sound definition and the frequency response of a passive crossover.

Crossover components are used to separate signals from different parts of the speaker system.

These crossover components are placed near the speakers, and they are designed to be easy to install and set up.

Speaker systems with crossover components are designed to deliver the highest quality sound out of the box.

A full range signal first leaves the amplifier, then goes to the crossover, where it is split into two parts. High notes go to the tweeter, and low notes go to your woofer. You can reduce the volume of the tweeter if you want.

InLine Crossovers

Crossover components are used to separate low frequency sounds from higher ones. They are also used to process audio signals before amplification.

They are usually cylindrical shaped devices that plug into an amplifier’s input jacks.

In-line crossovers are usually set to a specific frequency, but they can be adjusted. They can also interact differently with different amplifying systems.

In-line crossover components are used to prevent energy loss when processing signals that aren’t needed.

In-line crossovers are very useful when installed correctly. You can adjust them to any frequency you want.

However, they do interact differently with different amplifying systems. Therefore, you shouldn’t expect perfect results.

What Are Decibels?

Decibel is a unit used to measure sound pressure levels. Audio engineers use decibels to describe how loud something sounds.

Your ears are also logarithmic. You hear more when things get louder than when they get quieter.

What Is A Crossover Slope?

A crossover slope refers to the steepness of a crossover filter. Bigger is better. Steepness is measured in dB. Crossovers with higher steepness (or steeper slopes) are more effective in filtering out certain frequencies.

Crossover Slopes are measured in dB (decibels). Bigger is better. A steeper slope means that the crossover filters out a certain frequency before sending it out.

How To Determine Speaker Crossover Frequency

How To Determine Speaker Crossover Frequency

Crossover frequencies vary depending on the type of speaker. You can use the recommended range for each type of speaker.

However, if you want to get more specific, you should know the type of speaker you’re dealing with.

Speakers are designed to be used with certain frequencies. You should know what those frequencies are before buying speakers.

Your speakers’ specifications will tell you how much bass, midrange, and treble there is in them.

Look at the speaker’s specification sheet, and take notice of the lowest frequency. Most 2/3-way systems have a 30, 40, or 50 Hz crossover point, but on subwoofer systems, it may be as low as 20Hz. 

Multiply the lowest value on the speaker’s spec sheet by two. This equals the crossover point in your system.

The high-pass crossover point is the frequency at which your bookshelf speaker begins to give way to the subwoofers.

The low pass crossover point is the range where your subwoofer begins to taper off to prevent playing too many mid-range sounds.

The result of this means that there’ll be a flat response starting from the crossover point down until the speakers naturally start to taper off. 8. A speaker with the lowest frequency of 40 Hz will have a roll-off at about 32 Hz.

What Is A Good Crossover Frequency?

A good crossover frequency is a frequency range at which the crossover filters out unwanted sounds perfectly.

It’s hard to set a single unified crossover frequency for speakers because a lot of factors affect it. However, there are some common frequency ranges that will usually work well.

Subwoofers should be set up to play bass frequencies below 80Hz. Main speakers should be set up to filter out bass frequencies above 60Hz.

Tweeters and 2-way speakers should have a crossover frequency of 3.5kHz. Midrange speakers and woofer should have a crossover frequency between 1-3.5kHz. Woofers and midranges do not work well without tweeters.

For 3-way speakers:The recommended crossover frequency is 500Hz and 3.5kHz. The midrange drivers in 3-way systems most likely won’t deliver quality sounds below 500Hz or 250Hz.

A good crossover frequency is a frequency range that works well for most speakers. Crossover filters should be set up to avoid any frequencies that may cause problems.

Setup Tips

Speakers should be placed near the listening position. You shouldn’t place speakers too close to walls because they could cause sound distortion.

Speaker placement depends on the room size and the type of music being played.

A high-quality speaker system will usually have a crossover point that separates low frequencies from higher ones. This crossover point is found by looking at the specifications of the speaker.

The lowest frequency on the speaker’s spec sheet is multiplied by two. This gives you the lowest frequency that is available in the crossover adjustment menu.

A high-pass crossover point of 80 Hz is expected. Your bookshelf speakers give way to the subwoofers when the subwoofers start to play at 80 Hz. You need to set the low-pass crossover point to 20 kHz.

A speaker with the lowest frequency of 40Hz will have its roll off around 32hz.

How To Set The Phase

You should set your speakers in a way they’ll face the same direction. This will help you to get better sound quality. If you’re using two or more speakers, make sure they’re in sync phase-wise.

If you have RCA cords, you can’t switch the wires. In order to fix this problem, you should use a phase switch.

This means that you need to set up your speakers in a certain way so that you can still hear them without fully installing them into the entertainment case or the walls.

You can adjust the bass level by turning the phase control. Try different settings until you find the right one.

How To Set The Crossover

You should always set the crossover frequency manually if you want to hear the full range of frequencies coming out of your speaker system.

This is especially important when using a subwoofer because it helps ensure that the subwoofer doesn’t get too loud.

Before we start, your subwoofer must already be plugged in and working. Take a look at the back of your subwoofer and there are simple controls for your music system.

We’re going to start by using the first setup cut. This is the most basic setup you could ever imagine. You’ll need two tracks, one for each side of the mix. In this case, we’re going to call them Left and Right.

These tracks should be set up exactly the same. Let’s say that the left channel is mono and the right channel is stereo.

So, we’ll make sure that both channels are set to Mono. We’ll also make sure that both channels have the same number of tracks.

Find the low end of the subwoofer’s frequency range. You can locate this  either in your manual or from the manufacturer’s website. Set the crossover frequency 10 Hz higher than this frequency for the best results.

Listen for a smooth transition from the subwoofer to the other speakers ensuring that the sound quality is crisp.

Bass bumps are caused by an object moving across the speaker cone. This causes the cone to vibrate, producing sound waves.

When the vibration reaches the crossover point, the bass response stops increasing. To avoid this problem, make sure the crossover point is set as close to the low end of the range as possible. 

Audio Mythology

A lot of people use crossover settings that are too high. That results in a sound that is fat, booming and poorly integrated with the main speakers, as well as a lack of deep bass.

But if you set the crossover correctly, your system will produce a much more natural, extended and flat-sounding bass response.

You shouldn’t hear a good subwoofer if it’s in the system. What experts mean when saying that is that one should not hear a booing, over-rich sound quality stepping all over movies or music.

What gets lost in this saying is that while one should not hear the objectionable parts of mere adequate subs — those generally intended for movie use.

When one takes a really fine-tuned subwoofer like ours — out of the properly tuned systems — the system should sound utterly broken.

This is an important part of the speaker system. You should be able to hear the difference between the sub and the main speakers when you turn down the sub

Speakers should be located near the crossover point. The crossover point is the frequency at which the woofers and tweeters begin to work together. This is usually around 3kHz.

The lowest frequency supported by most receivers is about 50 Hz. Multiply this number by two to get the highest possible output.

This means that if you buy a speaker that supports a range of 30 Hz to 55 Hz, then you should be able to achieve an output of 110 dB (or more) when playing music at full blast.

A normal high-pass crossover is 12 db/octave. You should expect this when using a normal high-pass filter.

If the subwoofer’s low-pass crossover point is within a certain range, then it will start to taper off to avoid playing too much midrange noise.

A speaker with a low frequency rating of 40 Hz (or less) will produce no sound when the input signal is below 32 Hz.

If you don‘t adjust your crossover frequency carefully, your subwoofer might be unable to concentrate on delivering low-frequency notes and deep bass.

If you bought an integrated system that includes an EQ feature, it’s possible that the crossover between the subwoofer and the other speakers was set automatically.

In order to change the crossover in an app, open up your audio software (i.e., iTunes) and then select the Subwoofer option.

Click on the “Crossover Frequency” button and enter the number of Hertz that you want to use as the crossover point.

For example, if you want to use a crossover point of 200 Hz, type 200 into the box. Then click OK.

In both cases, you should set the crossover point 10 Hz lower than the lowest frequency your subwoofer can reproduce.

This ensures that the output is clean and clear. You should also be careful about the smoothness of the transition between the subwoofer and the other speakers.

Bass bumps are caused by the crossover frequencies. Adjusting the subwoofer level makes sure that the bass is strong enough.

Active crossovers are great because they allow you to change the frequencies of the speakers based on the music being played.

This allows you to get more bass out of your speakers when listening to heavy metal and less bass when listening to jazz. 

However, these crossovers are expensive, and they require some knowledge about how they work.

A better option is to use passive crossovers, which are cheaper than active crossovers but do not allow as much control over the frequencies.


Crossover frequencies are important for speakers because they help to separate the different frequency ranges of your audio source into different channels. This allows you to hear each channel separately.

Speakers are devices used to play music or other sounds. Some speakers have built-in crossovers, but you can add another layer of control by adding a crossover.

Crossover filters out unwanted frequencies and promotes optimal delivery of sound output. It all sounds very complex, but hopefully this guide has helped you to understand it all a little better!

Anita Jones