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Sonos is a leading American audio technology company that is best known for pioneering wireless multi-room audio systems, which make it easy for listeners to stream music and other content throughout their homes. The company continues to innovate, creating wireless speakers, home cinema systems, headphones, architectural components, and integrated home audio solutions that revolutionise how people listen and connect to sound.

If you’ve heard of surround sound before, you may be thinking of speakers positioned on all sides — front, back, left, and right. Such a setup does offer an immersive listening experience, but fails to account for another important dimension: height. In this guide, we’ll introduce you to height channels, which add verticality to the sound experience and thus offer a home cinema experience that resembles a real-life environment.

 works by surrounding the listener with various different points of audio. These points are referred to as 

. The number of speaker channels helps to determine how ‘immersive’ a sound system feels to the listener. Generally speaking, the more speaker channels, the more immersive the system.

Where the speakers are placed matters, too, though this is standardised in the most common surround sound configurations. A typical 

 allows for five ear-level speaker channels and one subwoofer. These are placed in the following configuration:

 front channels (left, centre, and right)

Another common configuration is the 7.1 setup, which adds two additional ear-level channels to fill any potential gaps in the sound experience.

It’s worth noting that adding more channels doesn’t necessarily require adding more speakers to your configuration. Some 

 can deliver multiple channels at once. A Sonos soundbar covers the three front channels (left, right, and centre) all by itself.

A truly immersive sound experience depends on more than just ear-level channels, though. You can also add additional channels above ear level. These so-called 

 can bring an entirely new dimension to a surround sound setup.

Put simply, a height channel is a point of audio positioned above the listener. This audio may come directly from an 

), though height channels don’t necessarily require speakers positioned overhead.

 design have led to new possibilities for adding height channels to a surround sound system. Object-based sound technology, such as 

, assigns different sounds to specific locations in a room. Speaker drivers positioned at the ear level can then fire certain sounds upwards, so that they bounce off the ceiling and hit the listener’s ear from above. The result is a truly three-dimensional soundscape, with sounds projected from all sides as well as from various different heights.

To account for this extra dimension of height, many speaker configurations now include a third number. For example, a 7.1.4 configuration includes the following:

White Sub next to a sofa with a white Beam on a console in the background

If you think a 7.1.4 setup requires investing in an abundance of speakers, we have good news. You can achieve this exact configuration with as little as three speakers and a subwoofer.

To do this, though, you’ll have to choose a combination of a soundbar and speakers that supports the spatial audio capabilities of Dolby Atmos. Of course, you can also add in-ceiling speakers if you prefer a more architectural setup. Let’s take a closer look at these options.

 is the most obvious way to add height channels to your home cinema setup. It may make sense if you favour a custom, discreet solution that blends with your home’s design. Just note that this option may require a 

, and it’s not as flexible if you want to change the positioning of your sound system later down the line.

For most people, using Dolby Atmos-enabled speakers is a much easier path toward truly immersive sound. For example, you can achieve a 7.1.4 

 with the following Sonos configurations:

1x Beam (Gen 2) + 2x Era 100 + 1x Sub or Sub Mini

For a next-level immersive sound that rivals — if not beats — watching in the cinema, Arc Ultra renders a 9.1.4 surround sound experience from the soundbar alone. Pair it with two Era 300 speakers and Sub 4 for a listening experience you’ll have to hear to believe.

Several of these configurations are sold in 

, so you don’t need to buy them separately.

, you’ll need to keep an eye out for content that’s specifically mixed in the Dolby Atmos format. Otherwise, your system will still sound good but may lack some distinction between height and ear-level channels.

Film and TV streaming services continue to expand their Dolby Atmos-supported libraries, and you should find a growing library of options on Netflix, Disney+, Apple TV, and Amazon Prime Video. Some music streaming services, like Apple Music and Amazon Music, also stream a selection of songs in spatial audio.

With the development of spatial audio technologies like Dolby Atmos, we’ve arrived at a new era of surround sound — an era where we’re opening new dimensions in the home audio experience. Height channels are the key development in this era, and you don’t need overhead speakers to add them to your home setup. If you’re interested in bringing a new dimension to your sound experience, get in touch with a Sonos expert by 

Couple sitting on a sofa watching TV with a white Beam and an Era 100 pair

What Are Height Channels for Speakers and Home Cinema?

When we created Sonos Arc, our goal was to push beyond the limits of what a soundbar could deliver. The Arc name has since become synonymous with an immersive home cinema experience that renders every sound — from whip-fast dialogue to pulse-pounding explosions — with dramatic clarity and depth. But innovation never pauses at Sonos, and we’re excited to introduce the next chapter in cinematic sound. Meet Arc Ultra.

Arc Ultra is a complete reinvention of our best-selling soundbar, with an all-new acoustic architecture that achieves immersive sound never before possible from a soundbar this sleek. Let’s explore the design and technological advancements that make Arc Ultra the new standard for home cinema sound.

 extend even further than those of its predecessor, thanks to a total of 14 precisely-engineered speakers that span the full range of audio frequencies, from crisp highs to booming lows.

However, these speakers don’t work all on their own. They’re nested within an entirely new acoustic architecture that makes Arc Ultra unlike any soundbar you’ve heard before. Let’s break it down.

 handle the full spectrum of higher-pitched sounds. Newly-designed wave guides direct these high frequencies towards both sides of the room, as well as upward, to fill even more space in the room with sound. Six midwoofers contribute to a rich tapestry of mid-range and vocal frequencies, ensuring that dialogue cuts through the mix with crystal clarity, even at high volume levels.

Rounding out the array is a newly-designed Sound Motion woofer, which marks a revolutionary leap forward for home cinema sound. The use of Sound Motion technology in Arc Ultra is the key to unlocking the soundbar’s unique acoustic architecture, which delivers a bigger and more balanced sound experience in a slimmer design. The difference is especially prominent in Arc Ultra’s bass output, which far surpasses the previous generation while reducing the height and depth of the soundbar. This sleeker, smaller footprint is made possible by an innovative flat design featuring four distributed lightweight motors and voice coils with force-cancelling dual cones in a single enclosure.

Here’s where you might stop to wonder about the furniture-rattling implications of a soundbar capable of such powerful bass response. But rest assured: the Sound Motion woofer unleashes its low frequencies with virtually no mechanical vibration, which keeps distortion to a minimum while contributing to a truly cinematic experience at home.

We’ve completely updated the acoustic architecture while staying true to the beloved sleek design of Arc. In fact, Arc Ultra features an even sleeker footprint compared to its predecessor. All of the above speakers are precisely tuned to fit inside a slimmer enclosure that features an extended wraparound grille and a distinctive racetrack design that allows for sound to be fired across the room at all angles.

Every aspect of Arc Ultra is designed not just with looks, but also with sound in mind. Because the new enclosure fits more speakers — and positions these speakers in such a way that they accurately beam sound around the entire room — it renders a more complete 

 than has ever been available in a soundbar.

 and its ability to create an immersive, multidimensional soundstage. However, it is also owing to the unique design of Arc Ultra, which can render a 9.1.4 Dolby Atmos experience (nine ear-level channels, one subwoofer, and four height channels) without any additional speakers — a huge improvement from Arc’s already-impressive 5.0.2 experience. Add Arc Ultra to a setup that also features a pair of Sonos 

, and you have the ultimate in Dolby Atmos surround sound.

Finally, a note on size. Because space is at a premium in many home cinema setups, we’ve also reduced the soundbar’s depth and height. A shallower depth makes for a more elegant and inconspicuous on-wall presence, which is more in line with newer television models. A shorter height accounts for the ever-shrinking footprint of modern TV bezels, ensuring that a soundbar placed at the bottom of your screen doesn’t obstruct your view of the action.

The software and processing power on Arc Ultra are just as impressive as the hardware components. Additional features designed to improve your listening experience include:

. It’s not just the speakers that matter — it’s the space, too. Arc Ultra’s built-in software can measure how sound reflects off the objects and surfaces in your room, then tunes the soundbar to accommodate the space. In previous iterations, this feature was called Trueplay. Arc Ultra marks the debut of a faster, easier version of home cinema Trueplay called 

, which will now be available not only to iOS users, but to Android users as well.

. Our popular Speech Enhancement feature now comes with multiple levels of control. This is a win for everyone who enjoys a more cinematic experience, but especially for those with hearing difficulties who have been forced to rely on subtitles in the past.

Among the key differences between Arc Ultra and Arc, perhaps none is more audible than the addition of Sound Motion technology, which delivers clear, booming bass frequencies with virtually no mechanical vibration.

But it’s not just about the low end. Sound Motion helps Arc Ultra deliver bigger and better sound across the full audio spectrum while shrinking the size and weight of the hardware required. This space-saving technology was key to outfitting Arc Ultra with a more immersive acoustic architecture that does justice to the entire range of audible frequencies. The updated soundbar boasts three different types of transducers — each one dedicated to high, mid, or low frequencies — to create a more balanced, natural sound that isn’t too heavily weighted in one direction.

Transparent view of Arc Ultra displaying Sound Motion technology

Sometimes, less really is more. This was one of the guiding design principles behind Arc Ultra, which consumes an estimated 20% less power than its predecessor when idle. This principle goes down as far as the packaging, which uses less plastic overall as well as paper elements certified by the Forest Stewardship Council.

Arc Ultra’s smaller design is a big part of our push towards sustainability — though in ways that may not be obvious on first glance. For example, smaller packaging allows us to fit 264 more units on a single cargo container. Everything, down to the soundbar’s physical construction, is designed with sustainability in mind, which is why Arc Ultra is built with halogen-free PCB material widely considered to be less toxic than halogenated alternatives.

Experience sound like never before with Arc Ultra

The original Arc set a high bar for soundbars, delivering the type of spatial audio experience you’d expect from the cinema. The new Arc Ultra clears that bar and then some, redefining what’s possible in a soundbar with its innovative acoustic architecture.

Put simply, Arc Ultra delivers on the promise implicit in its name and now stands as the top-of-the-line soundbar option for audiophiles and home cinema enthusiasts. With a more spacious soundstage, clearer dialogue, and deeper bass (even at high volumes), this is a soundbar that’s easy to get worked up about. If you’re interested in adding Arc Ultra to your home cinema setup, get in touch with a Sonos expert by 

Sand erupting from a black Arc Ultra with Dune 2 graphics

Introducing Arc Ultra - Our Most Innovative Soundbar Yet

Copywriter, Global Brand Creative

With the lights dimmed, a bowl of fresh popcorn, and the family cuddled on the couch, there's nothing quite like film night from the comfort of your own home. However to truly get that 

, the sound needs to be extraordinary. In this blog post, we’ll walk you through the process of creating a Sonos home cinema — from choosing the right soundbar to adding pulse-pounding bass to demystifying surround sound — and help you make the best choice for your space.

The idea of setting up a home cinema may conjure visions of wires snaked through the walls, stacks of complicated gear and multiple remotes. While this might have been true in the past, getting immersive audio in your home has never been easier or more valuable. With advancements in technology and software, all you need are a few well-chosen speakers to experience sound that rivals the best film cinemas.

Yet the number of decisions you have to make to set up a home cinema that works for you can be overwhelming. Let’s not get started on the confusing jargon — what on earth are speaker ‘channels’, and should you really care about 5.1 or 7.1.2 surround sound? With that in mind, we put together this guide to help you make a few simple decisions so you can experience cinema-quality sound at home.

Back when TVs were big and boxy, the screen and built-in speakers were about the same size. However as TVs have become thinner and thinner, the speakers have become smaller and smaller — leaving us scrambling to turn on closed captions just to follow the story. One of the easiest ways to improve the audio quality of your TV is with a soundbar. The sound will be fuller, the dialogue crisper, and the bass bolder.

tuned by Oscar® and Emmy®-winning sound engineers

 to ensure that you’re hearing your favourite films and shows as they were meant to be heard. Our soundbars work with virtually any TV and automatically pair with your existing remote for easy volume control. You can also adjust the volume and manage your system using the Sonos app, Apple AirPlay2, your favourite music app, or 

. When you’re not watching TV, stream music from hundreds of services including Apple Music, 

Start with a Sonos soundbar

Our sleekest and most powerful soundbar, Arc Ultra creates a massive soundstage that fills every inch of the room and precisely places sounds all around you. Featuring revolutionary Sound Motion™ technology, this soundbar packs unprecedentedly clear, deep, and balanced sound into an unbelievably compact design. When watching films in Dolby Atmos, Arc Ultra takes your viewing experience to another dimension, with 9.1.4 surround sound you’ll have to hear to believe. With its distinctive curved shape, low-profile design and matte finish, Arc Ultra looks beautiful in your home, either 

 underneath your TV or placed on furniture.

Our compact yet powerful smart soundbar does it all. Beam provides high-definition sound for shows, films, and games; offers a virtual spatial audio experience (more on that later); and, like Arc Ultra, when you step away from the screen, Beam can play your favourite music, podcasts, and more with rich, room-filling sound. It’s our most versatile soundbar — with the ability to dial the immersion to your exact liking with several subwoofer and rear speaker options. Place Beam on furniture in front of your TV or mount it to the wall using a custom 

Don’t let its size fool you — Ray delivers surprisingly detailed sound for a soundbar this small. Our most affordable soundbar offers crisp dialogue and balanced stereo sound for your shows, films, and games. Designed for maximum versatility, its all forward-facing acoustics make it ideal for tucking into a TV stand without impacting the sound quality (In other words, you don’t have to worry about your furniture blocking any soundwaves) and with an optical input, Ray is a great option for pairing with your PC.


If you’re not sure which soundbar is best for your TV, you can learn more about setup requirements 

All of our soundbars feature settings designed to improve your listening experience. With a quick tap in the Sonos app, you can make dialogue even clearer or improve the sound for lower volume levels when watching late at night.


Tap the half moon icon to balance the sound so you won’t wake the rest of the house (or your neighbours). No more turning up the volume when characters whisper and then frantically turning it down when things explode.

Tap the dialogue box icon on the Now Playing screen to emphasise dialogue so you won’t miss a word — even when the action gets intense. With Arc Ultra, enjoy greater control by choosing your preferred level of Speech Enhancement in Settings.

: Already have a pair of speakers you love? 

 allows you to turn your existing audio equipment into a wireless Sonos system. It’s perfect for those who want to keep their analogue gear but also enjoy the ease of streaming films and music from the cloud.

Dual Sonos Sub 4 with Arc Ultra in white in a wooden panel living room

Not only can a subwoofer (also known as a ‘bass speaker’) produce more immersive and cinematic sound, but it also improves your soundbar’s overall performance.

Your soundbar produces mid-range and high frequency sounds, like dialogue, with exceptional clarity. However because of its slim and compact design, it’s limited in its ability to produce deep, powerful bass. By adding a dedicated bass speaker to your setup, your soundbar is able to offload the lowest frequency sounds — like a rumbling engine — and focus on delivering crisper mid-range sounds and cleaner highs. Ultimately, a subwoofer helps widen the soundstage to create a greater sense of dimension and depth.

Add a subwoofer

If you’re looking for clean, pulse-pounding bass that can fill a large room, look no further than Sub 4. Our iconic subwoofer pairs best with a powerful soundbar like Arc Ultra or Beam for truly immersive sound. Its versatile design lets you find the perfect fit for Sub in your home: face it forward to put it on full display; turn it to its profile for a more discreet look; or lay it flat and slide it under your couch so it’s completely out of sight. For the ultimate home theatre experience, you can add a 

 to Arc Ultra for even more balanced and impactful bass. Dual Subs work in harmony to engulf your space with the deepest rumbles of a fiery explosion and powerful roars of a crashing wave.

If you’re wanting to add bold bass to a smaller space, such as an apartment or simply a bedroom, go with Sub Mini. This compact interpretation of our premium subwoofer features advanced processing that helps reproduce the full-toned bass of a much larger subwoofer but at a smaller scale. Its minimal footprint and unique cylindrical design fits nicely all around your home. Display it in plain sight or slide it under a desk for a more discreet look. For the best bass experience, we recommend pairing Sub Mini with Ray or Beam.

A pair of black Sonos Era 300 speakers on stands in a living room

You have a soundbar, and a subwoofer. How much of a difference can two more speakers make? Plenty. When you add two matching rear Sonos speakers to your home cinema setup, you’ll uncover greater details in songs, and you’ll find yourself completely enveloped in what you watch.

Connect two rear Sonos speakers for surround sound

As you dive into the world of home cinema, you’ll likely see a lot of numbers, like 5.1 or even 9.1.4. If you’re confused, don’t worry. You don’t need to get too caught up in these numbers (known as ‘channels’) when it comes to building your home cinema, but they’re an important way of understanding the type of surround sound experience you’ll hear. Let us explain.

The term ‘channels’ simply means ‘points of audio’. However, back when audio enthusiasts first started building their home cinema systems (the ones with all the tangled wires and stacks of receivers), these numbers became synonymous with how many 

 speakers needed to be present in the room.

For example, if you were looking to create a traditional 5.1 home cinema system, you would need three front speakers (placed underneath and to the left and right of your TV) and two rear speakers (typically placed to the left and right of your couch). The .1 indicated the addition of a subwoofer. However with the emergence of the soundbar, this tried-and-true cheat sheet for building a home cinema system began to fall apart. You now have 

This traditional way of thinking about channels is not as applicable to today’s technology. With the advancements of audio hardware and software, you no longer need to scatter your room with speakers to get an incredibly immersive sound experience. Premium soundbars like Arc Ultra have the ability to render 9.1.4 surround sound from the soundbar 

 soundbar doing the work of nine ear-level speakers, one subwoofer, and four overhead speakers).

A better way of thinking about channels these days is in terms of levels of 

 instead of number of speakers. If you are someone who likes a good cheat sheet, a general rule to follow is that the higher the number, the more immersive the sound experience.

9.1.4 Multi-dimensional surround sound setup with Arc Ultra, Sub 4, and two Era 300 speakers with soundwaves

Now you may be thinking, if a soundbar can produce incredible surround sound on its own, why should you add two more speakers? While adding rear speakers won’t always impact the channel configuration (such is the case for Arc Ultra), surround speakers will help disperse audio more evenly across your space, ensuring sound reaches every corner and angle of the room. This will add even greater depth and detail for truly lifelike sound that feels like the action is unfolding in your living room.

Our most versatile and compact smart speaker delivers rich, impactful surround sound when paired with Arc Ultra, Beam, and Ray. With custom-built woofers and tweeters, Era 100 evenly disperses sound across the room to create a wider soundstage that allows you to hear more details and subtle nuances in your favourite music and films. Its sleek, minimalist design blends seamlessly into your home and fits nicely on furniture or using custom Sonos stands.

A couple on the couch watching TV with a Sonos Ray surround sound setup

If you want the ultimate Dolby Atmos experience at home, choose Era 300. You’ll feel the bass pound deep in your chest. You’ll hear the dialogue as if the characters are standing right in the room. You’ll feel completely enveloped in the story. When paired with Arc Ultra and Sub 4, Era 300 offers a true multi-channel surround sound experience without the need for multiple overhead speakers or complex wiring. The upward and side-firing drivers project sound all around the room to create a soundstage that completely immerses you, with sound coming from forward, behind, and above.

A couple on the couch watching a film with a Sonos Arc Ultra surround sound setup

One of the tricky parts of adding rear speakers to a home cinema setup is where to place them. We’ve made it easy with a variety of speaker stands and mounts. Choose what works best for your viewing room 

Learn more about placement tips for Era 300 

Pro Tip: Add Sonos Voice Control to your system in the Sonos app to turn on your TV and adjust your home cinema audio settings hands-free.

Now that you understand the basics of home cinema sound, it’s time to find the right setup for you. To help take the guesswork out of building your system, we've put together this chart with our recommended speaker pairings based on the size of your space, the size of your TV, and level of immersion you’re hoping to achieve.

(Small room size, TV up to 55”)
Ray + Sub Mini + 2x Era 100


(Small to medium room size, TV up to 65”)
Beam + Sub Mini + 2x Era 100

 (Medium to large room size, TV up to 65”)
Beam + Sub 4 + 2x Era 100

 (Large room size, TV up to 65”)
Beam + Sub 4 + 2x Era 300

(Medium to large room size, TV 50” and over)
Arc Ultra + Sub 4 + 2x Era 100

(Large room size, TV 50” and over)
Arc Ultra + Sub 4 + 2x Era 300

*Some channels rendered using virtualisation techniques. Requires compatible TV and Dolby Atmos-supported streaming service. Learn more about compatibility requirements 

Once you’ve chosen the right setup for you, there’s no need to build it yourself. Save when you get it as a 

Once you’ve set up your home cinema, it’s easy to make sure it sounds its best in your unique space by fine-tuning it with 

. It’s also easy to add additional speakers in other rooms of the house. That way, you won’t miss any of the action when you head to the kitchen for more popcorn. In fact, the most difficult thing to do will be deciding what you want to watch or listen to next.

A family sitting on the couch watching a film with a Sonos Arc Ultra surround sound setup

The Ultimate Guide to a Sonos Home Cinema

At Sonos, we believe in delivering the best sound experience — seamlessly and reliably. But we fell short when our new app release didn’t meet the standards we promised. Since then, we’ve spent time listening to our customers and employees, learning from our mistakes, and taking action. Today, we’re announcing new commitments to show our renewed focus on software quality, customer experience, and delivering the excellence you deserve from Sonos.

We’re working to ensure we don’t just fix our mistakes but actively build a better Sonos experience for everyone. Many of these initiatives are already underway and others will be implemented through the remainder of the year.

These commitments focus on addressing the root causes of the app release issues and regaining the trust of our customers.

To deliver the highest level of customer experience, we will always establish ambitious quality benchmarks at the start of product development. We will not launch products until they meet these criteria. We will also enhance the tools needed to measure and maintain the standards our customers expect.

Unwavering Focus on Customer Experience

Our beta testing programme will include a broader range of customers and more diverse setups, helping us diagnose and resolve issues faster before going to market.

Increasing the Stringency of Pre-Launch Testing

In contrast to the all-at-once automated app release we issued in May, any major change to the Sonos app will be released gradually, allowing customers to adjust and provide feedback before it becomes the default. We will also provide customers the ability to opt in to test new features.

Approaching Change with Humility

We are creating a new role: Quality Ombudsperson. This person will ensure employees have a clear path to raise concerns regarding quality and customer experience. The ombudsperson will report directly to executive leadership, publish reports twice a year, and present regularly to the Sonos board of directors.

Appointing a Quality Ombudsperson

In addition, we are also committing to the following to begin to regain your trust:

To reflect our strong belief in the quality of our products, we will extend the manufacturer’s warranty by an additional year for all home cinema and plug-in speaker products currently under 

Extending Our Home Speaker Warranties

We will continue to roll out updated mobile software versions every 2-4 weeks to optimise and enhance the app experience, even after the current issues are fully resolved.

Relentless App Improvement

We will form a Customer Advisory Board to ensure we never lose sight of our customers' voices. This board will provide feedback and insights from a customer perspective to help shape and improve our software and products before they are launched.

Establishing a Customer Advisory Board

As a demonstration of the significance of these commitments,

 the Sonos Executive Leadership Team will not accept any annual bonus payout for the October 2024 - September 2025 fiscal year unless the company succeeds in improving the quality of the app experience and rebuilding customer trust.

Sonos sign above plants at front reception desk of Sonos office

Since May, the Sonos team has been working diligently to release new software updates approximately every two weeks and rapidly roll out new features and meaningful improvements and fixes.

More than 80% of the app’s missing features have been reintroduced and the company expects to have almost 100% restored in the coming weeks.

share detailed notes on what we’ve addressed

 and what we are working on next through our 

. To track our progress, you can stay updated on specific improvements via the 

Sonos App Improvement and Bug Tracker on Trello

Sonos user holding their phone using the Sonos app to control a white Era 100 speaker

We are committed to making Sonos better than ever, and these commitments are just the beginning of that journey. Thank you for being a part of the Sonos community.

Sonos user in a yellow sweater lying on a blue blanket enjoying the sound of a Roam 2 portable speaker

Recommitting to Quality and Customer Experience

When shopping for a speaker or soundbar, you might encounter some words that sound more comical than technical. A tweeter? A woofer? What do birds and dogs have to do with producing a well-balanced sound experience?

As it turns out, these names are quite helpful in describing the function and sounds produced by the different components within a typical speaker enclosure. A tweeter is indeed like a bird, in the sense that it is small and designed to produce high-frequency sounds. Compare this to a woofer, which is bigger and produces deeper sound frequencies in the range of, say, a barking dog.

In this guide, we’ll focus on tweeters and the crisp, high end of the sonic range. These small but mighty pieces of hardware can fill a room with dazzling vocals, lead instruments, and other frequencies stretching towards the uppermost limits of audible sound.

In simplest terms, a tweeter is the part of a speaker responsible for producing higher-pitched sounds. Tweeters are specially designed to reproduce the higher frequencies of an electrical audio signal — and the higher the frequency, the higher the pitch you hear in your music.

Though different types of tweeters can be tuned to produce narrower ranges of audio frequencies, tweeters as a group typically produce frequencies within the range of 

. Hertz refers to the number of vibrations that occur in one second, and faster vibration speeds correspond to higher-frequency sounds. High-pitched vocals, crashing cymbals, and guitar solos are examples of sounds that fall within the lower end of a tweeter’s range (2,000 Hz). The higher end of the range (20,000 Hz) is associated with sounds that are barely even audible to humans, like dog whistles.

Tweeters are almost always the smallest speakers in an audio setup. Their small size is an important quality, as it correlates with the types of sounds they can produce accurately. Why? Because to produce these high-frequency noises, a speaker must be able to vibrate at rapid speeds. This is an easier job for smaller speakers like tweeters, which have a smaller surface area, lower mass, and other physical characteristics that allow the tweeter to move back and forth more freely. This back-and-forth vibration is essentially what produces sound, and faster vibrations translate to higher-pitched sounds.

Though you may have been unaware of their existence until just a moment ago, tweeters play an important role in most speaker setups. They’re built into the enclosures of many 

, where they’re responsible for reproducing the mid- and high-frequency sounds that cut through the audio mix — think vocals, lead instruments, and stirring string arrangements. In a home cinema speaker, tweeters handle many of the audio frequencies associated with 

Just as birds often sing in chorus, tweeters often work together to reproduce a particularly rich composition of higher frequencies. A speaker enclosure may house multiple tweeters, each of which serves a different role. Sometimes, the role a tweeter plays in a speaker configuration will determine its shape. A classical dome-shaped tweeter can produce a wide- and well-balanced range of sounds, while a directional horn-shaped tweeter can fire sounds into specific parts of a room to bring 

White Arc Ultra wall-mounted underneath a television

Person putting a record on a turntable, placed next to a white Era 300

What Are Height Channels for Speakers and Home Cinema?

Introducing Arc Ultra - Our Most Innovative Soundbar Yet

The Ultimate Guide to a Sonos Home Cinema

Recommitting to Quality and Customer Experience

What Are Speaker Tweeters (And What Do They Do?)

Introducing Sub 4 - Our Latest Subwoofer

Music for Business: How To Upgrade Any Speaker Into a Sonos System for Sonos Pro

Beginner's Guide to Audio File Types (And Which to Use)

What Is Lossless Audio — And How To Stream It at Home

Update on the Sonos app from Patrick

What Is a Speaker Amplifier (And Do You Need One)?

How to Hear Dialogue Better When Watching TV Shows and Films

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