Do I Need Crossovers for My Speakers?

When speakers produce sound, they are doing so through a mechanism called an amplifier. In order to produce sound at all, your speakers need a source of amplification. Speakers that are not connected to an amplifier will only produce a low hum or buzz. Do I Need Crossovers for My Speakers?

If you have speakers that are already connected to an audio source (such as an MP3 player or an AM/FM radio), you do not need a crossover. Instead, the speakers are operating as “full-range” speakers, and your audio source is operating as a “subwoofer” with respect to the rest of the system. If you want your speakers to play in stereo, you will need a crossover.

Do I Need Crossovers for My Speakers?

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What is a Crossover for Speakers?

A crossover is a device, typically found within an amplifier, that divides the audio signal into different frequency bands. The crossover splits the frequency range of your audio signal into low, mid and high frequencies and sends each to the appropriate speaker.

Crossovers have been around since the 1950s, when they were first introduced to help separate instruments in a band. For example, if you wanted to mix the sound of a bass guitar with a snare drum hit, you would need to use a low-pass filter to isolate and raise the bass guitar’s frequency until it was inaudible to human ears.

This minimized interference between high-frequency instruments such as cymbals. In a modern home theater system, this type of instrument separation has many applications.

How to Connect Crossovers

If you want your speakers to play in stereo, you will need a crossover. These come in many different sizes and shapes, with some being more complex than others. You will also need an amplifier for each set of speakers with which you want to achieve stereo sound.

When connecting a crossover, the most important thing is to make sure that your wiring is fully insulated so that there are no exposed connections. You can use two audio cables and two speaker cables to connect the two sets of speakers.

One cable should be connected from the amplifier’s output to the “high-level” (or “speaker-level”) input on the crossover. The other cable should be connected from the amplifier’s output to the “low-level” input on the crossover. All power must be disconnected during this procedure, or else you risk shocking yourself as well as short circuiting your equipment.

How to Set Up Crossovers

The crossover is the component of the system that splits the audio signal into different frequency ranges. This can be done electronically with an active crossover, or with a passive crossover. Passive crossovers are more common in audio systems because they are cheaper and simpler to set up.

When setting up a passive crossover, the high frequencies (above 3kHz) from your amplifier will go to the tweeter. The low frequencies (below 300Hz) will go to the woofer. If you plan on using your speakers for sound reproduction or as part of a home theater system, you need a crossover to split the sound between speakers appropriately.

Crossover Brands and Cost

There are many brands of crossovers, with different price points. Quality and features vary greatly between the different products. When shopping for a crossover, it is important to consider your needs. Some crossovers only need to split one signal, while others need to split two signals.

It’s also important to consider the quality of the speakers you have or intend on purchasing. If you have low-quality speakers, a crossover won’t make them sound any better. You should invest in a quality crossover that will suit your needs as well as your budget.

Is surround sound really necessary?

Surround sound is a type of sound equipment that allows you to hear music, movies and TV shows in true surround sound. The system has 5 speakers and a subwoofer: one on the left, one on the right, one on the back wall, one on the floor near your feet, and one up high.

Surround Sound was created to immerse the audience into a three-dimensional sound field with audio all around them. Surround Sound does not add anything new to what’s happening on screen. It’s just playing different parts of the audio track from all around you rather than from two speakers in front.

Is surround sound really necessary? No! While some people may enjoy it more, it’s not necessary for watching TV or movies. If you are someone who enjoys listening to music or watching movies at home, then there are many benefits to having surround sound – for example it can be much more immersive than stereo sound.

Do I Need Crossovers for My Speakers?
Image source: Teufel Blog

Do I really need 5.1 surround sound?

If you are the kind of person who likes to watch movies and listen to music, then surround sound is a great addition to your living room. Surround sound provides an immersive listening experience. It also helps with hearing dialogue while in a noisy environment.

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Some people are hesitant about purchasing 5.1 surround sound speakers because they think it will be too expensive, complicated, or unnecessary. It’s not necessary for most people, but it can be really beneficial if you want to enjoy quality audio sounds and experience films like never before.

Can you put surround speakers in front?

Yes, you can put surround speakers in front. You will need to set them up correctly so they are playing sound from the correct angle to provide sound that is balanced with the rest of your system. This may require some experimentation and adjustments on your part.

In general, if you have speakers designed for “rear” placement and speakers designed for “front” placement, they will play more effectively when they are placed in their intended locations.

Do rear speakers matter?

If you only have two stereo speakers (left and right), both will be “full-range” with respect to each other. The same is true for four full range speakers in a home theater set up.

If you only have one speaker, it will not need a crossover as it is already operating as a full-range speaker.

wireless rear surround speakers
Image Source: Sound on Sound

wireless rear surround speakers

If you have pure full-range speakers, you can use amplifiers as your crossover. When deciding on a crossover frequency, consider how far apart the speaker locations are from each other.

It’s best to set the crossover frequency below 200 Hz for distances greater than 2 meters. In some cases, the bass output from your subwoofer may be strong enough to provide adequate lower frequencies for your full-range speakers and you might be able to set the crossover at 400 Hz or higher.

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Surround sound speaker layout

Surround sound speaker layout is a system of placing speakers in such a way as to create or enhance the illusion that sounds originate from various points in an environment.

The surround sound speaker layout is typically configured so there are two main speakers and one or more low-frequency effects (LFE) speakers. Sound for video games, cinema and television productions are mixed to take advantage of this effect.

The most common surround sound speaker layout consists of five speakers: two front speakers, two rear speakers and one center speaker.

The positioning of these five speakers creates an auditory environment which resembles the room as it would be heard by humans. The rear left/right (side) and rear center channels are intended to mimic the sound experience as it is heard by humans with normal hearing from their ears’ respective positions when sitting in the sweet spot.

This use of three channels achieves psychoacoustic surround sound with or without actual physical surround input capability on the playback device. Surround sound systems can be used to produce a convincing fake stereo image, since they reproduce exactly what would be heard if the listener were at the position of the virtual camera, without requiring complicated electronic processing like Dolby Pro Logic IIx does when converting monophonic sources into simulated stereo.

Can I use regular speakers as surround speakers?

Yes, you can use regular speakers as surround speakers. If you are using a TV or DVD player as your audio source and the speakers are on the same surface as your TV or DVD player, the sound is not likely to be directional enough to act as a good surround speaker. That being said, if you have a sound bar with speakers that are mounted on the wall in front of your TV, then those could serve as good surround speakers.

One way to use regular speakers is to mount them high up on the walls in each corner of the room. This will help create some directionality for your sound and make it feel like it’s coming from behind you.

Another way is to mount them low down near or on the ground and have them point at each other; this will create a much larger sound than they would produce if they were simply pointing at where they’re sitting around a table.

Should I listen to music in stereo or surround?

The crossover point should be set at 500 Hz or 3 kHz. If you want your speakers to play in stereo, then you will need a crossover. If you don’t have a crossover, you can use an audio source as one.

But make sure the amplifier has enough power for both channels together because they will take up more power than just one channel would.

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How Do Speaker Crossovers Work?

Crossovers are used in almost all speakers with a separate driver for the tweeter and another for the woofer. This is because tweeters use different frequencies than woofers, meaning that if you drive them together, the tweeter will only be able to reproduce the higher-end frequencies. Crossovers are generally passive devices, which means they require an external power source in order to work.

Some cheaper speaker systems will have active crossovers which mean there’s a small amplifier built into each crossover unit to power it up. But most high-end speakers with separate woofer and tweeter drivers won’t have this option due to the cost of producing such a setup. We’ll go through some of the key things you need to know about crossovers including what they do, how they can affect your sound quality and which models we recommend for your home audio setup.

Tweeter Crossovers

What Do You Need to Know? A tweeter crossover is different from a woofer crossover. Tweeter crossovers are mostly passive and require an external power source to work, while woofer crossovers are usually active (requiring an external amplifier). The most commonly used crossover point for tweeters is 3 kHz.

Tweeters are more sensitive than woofers, so the higher frequencies generally need less power and amplification. The main function of the tweeter crossover is to allow high-frequency sound waves from the tweeter to go straight into your amplifier while low-frequency waves will be sent through the passive filter circuit where they can be attenuated or amplified before being output by the woofer driver.

Woofer Crossovers

A woofer crossover is a device that diverts the low frequencies to the woofer, while sending the high frequencies to the tweeter. This means that you’ll get louder bass when compared to your highs, but it also means you’ll have less distortion and clearer sound. For most people, this is the best option because it gives you an improved sound quality without having to spend more money on a separate amplifier for each driver.

The various types of crossovers include passive crossovers, Butterworth filters, Linkwitz-Riley filters and Chebyshev filters. If you’re interested in learning about these different types of crossovers.

Pros and Cons of Using a Speaker Crossover

Crossovers provide the ability to separate the signal of the tweeter and woofer so that they can run on their own frequencies. The crossover is a passive device, meaning it needs an external power source to work. There are three types of crossovers: – Passive Crossover – Active Crossover – Electronic Crossover Passive crossovers require an external power source in order to function, while active and electronic crossovers have a built-in amplifier to power them up.

Active and electronic crossovers are far more expensive than passive ones since they require additional circuitry for amplification purposes.


  • Allows separation between audio frequencies for better sound quality
  • Passive crossovers have a lower cost when compared to active or electronic crossovers
  • Allows you to adjust your speaker’s frequency response by changing your crossover point. This means you can increase or decrease the amount of high or low frequencies played by your speakers, depending on your preferences!


  • Passive crossovers require an external power source during operation. Active and electronic ones are powered by a built-in amplifier which makes them more expensive

How Crossovers Can Affect Your Sound Quality

If you have a two-way or three-way speaker system (meaning it has separate woofer and tweeter drivers), then you’ll need to use crossovers. These will allow the different sound frequencies to be processed by the suitable driver, meaning that the tweeters will only produce high frequencies and the woofers will only produce bass.

It’s not just about sound quality though. Crossovers also help protect your speakers from damage. If you try to power a tweeter and woofer together, your tweeters may end up receiving too much power which can lead to them burning out over time.

When this happens, you’ll notice an audible distortion in your music as well as a loss of higher frequency detail. These are some benefits of using crossovers but they’re not without downsides either.

The main one is that they can introduce a loss of power at some frequencies due to their filtering properties. This means that if you want to reproduce those low frequencies, you may need more powerful amplifiers than would otherwise be required without the crossover filters in place.

This isn’t usually an issue when using modestly sized speakers but could become a problem with very large drivers (like subwoofers) as they require more power to work properly.

Brands With Great Crossovers

When you’re looking for a crossover, there are many brands to choose from. We recommend speakers with crossovers from brands like Polk Audio or Klipsch since these brands have a reputation for great sound quality.

Deciding Which Speakers You Need

Crossovers are a key part of any speaker setup with separate tweeter and woofer drivers. They help to ensure that the right frequencies are heard by the right speaker.

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This is because tweeters use different frequencies than woofers and if you drive them together, the tweeter will only be able to reproduce higher-end frequencies.

Crossovers need an external power source to work, but there’s two main types – passive and active crossovers. Passive crossovers require an external power source, whereas active crossovers have their own built in power source to provide more amplification for your sound system.

There’s plenty of different crossover models available on the market ranging from budget options to high-end ones designed for audiophiles.

But which one should you get? The answer is completely dependent on what type of speakers you have as well as what your audio needs are. Active crossovers: Active crossovers work best with speakers that have a separate tweeter and woofer driver.

These will normally be powered by a traditional amplifier or receiver (although some companies do produce active crossover amplifiers). Passive crossovers:

These are best suited for speakers that don’t have a dedicated amplifier built into them or those who want to save money on an amplifier purchase. Passive crossovers will operate at normal speaker volume levels so they can be used with any speaker.

How To Tell If You Need A Crossover:

If you add an amplifier and a subwoofer to that type of system, chances are you need a crossover to keep your mids and highs sounding crisp. If you’re just using a single speaker for all frequencies, then you don’t need a crossover.

But if you add an amplifier and a subwoofer to that type of system, chances are you need a crossover to keep your mids and highs sounding crisp. If you’re looking for the best sound quality possible, then it’s best to use separate drivers (woofers, tweeters) with passive crossovers in between them.

You can also use active crossovers which have built-in amplifiers but these are usually only found in high-end speakers due to the additional cost of producing such a setup.

Problems With Buying Cheap Crossovers

  • Problem 1: Cheap Crossovers Aren’t Well Built Cheap crossovers are often made from plastic and not metal, which may make them lightweight but also means they’re less durable. Cheaper quality crossover parts can also mean that your speakers could have a more distorted sound.
  • Problem 2: Cheap Crossovers Are Usually Not Bi-Amped If you have tweeters on one side of the speaker and woofers on the other side, then you need a bi-amp setup to power both of those speakers. However, cheaper crossovers don’t always come with this option so it’s worth considering as an additional purchase if your speakers don’t already have it built in. This will help to improve the quality of sound coming out of your speakers.


Do I need a crossover for my speakers?

Yes, if you have separate tweeters and woofers in your speaker setup, you need to have crossovers to avoid any interference between the two drivers.

Do rear speakers matter?

If you have rear speakers, then they should be “full-range” speakers. If you have a 5.1 speaker set, the front speakers are “full-range” and the rear speakers are “subwoofers.” This means that most of the sound comes out of the front left and right speakers, while the sound coming out of the rear left and right speakers is much less powerful.

What is a Crossover for Speakers?

A crossover is a device, typically found within an amplifier, that divides the audio signal into different frequency bands. The crossover splits the frequency range of your audio signal into low, mid and high frequencies and sends each to the appropriate speaker.

What does a crossover do?

The crossover splits sound waves into different frequencies so your tweeter, for example, can only produce the higher-end frequencies which is its job.

Is it worth getting active crossovers?

Active crossovers are generally designed for cheaper speakers because they’re less costly and easier to produce than passive crossovers, however in high end speaker setups with separate tweeter and woofer drivers we recommend sticking with passive crossovers as they offer better sound quality and performance over active designs due to their higher cost of production (i.e., they use more expensive parts).


The crossover is a vital component of any stereo system. A crossover separates the frequency bands of the audio signal so that they can be processed separately.

This article provides you with a few tips on how to set up your speakers in your home theater or stereo system. Crossovers are a vital part of your speakers, whether they’re cheap or high-end. If you have any questions about what they do, how to set them up and why you need them in the first place, we hope this article has helped.