Sonos ERA 300 Dolby Atmos Smart Speaker

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A new category of smart speaker, the Sonos Era 300 delivers truly immersive audio, bringing the thrill of spatial audio with support for Dolby Atmos.

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Now £399.00 Was £449.00

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Specifications of the Sonos ERA 300

  • Brand Sonos
  • Product Type Wireless Speaker
  • Warranty 6 Years
  • Width 260mm (10.24 in)
  • Height 160mm (6.30 in)
  • Depth 185mm (7.28 in)
  • Finish Matte black & white
  • Amplifiers Six class-D digital amplifiers precision-tuned for the speaker's unique acoustic architecture power your sound experience.
  • Drive Unit Complement Four tweeters (1 x front firing, 1 x upwards-firing, 2 x sideways firing) + 2 x woofers
  • Connectivity WiFi 6, Bluetooth 5.0, AirPlay 2, Spotify Connect
  • Microphone array The far-field microphone array uses advanced beamforming and multichannel echo cancellation for quick and accurate voice control and Trueplay tuning. Disconnect by toggling off the mic switch.
  • Top-panel Capacitive touch controls
  • Line In USB-C
  • Compatibility Sonos ERA 300
  • In the box Sonos Era 300, Power Cable (length: 2m), Quickstart Guide + legal/warranty information
  • Digital Assistant amazon
  • Music connectivity Airplay 2, Spotify Connect , Bluetooth

At Smart Home Sounds we pride ourselves on customer satisfaction and would like our customers to be 100% happy with their purchase.

We offer 30-day hassle-free returns and personalised service from real-life people. If an item doesn't meet your expectations, simply return your item to us in its original condition and packaging within 30 days for a full refund or exchange. 


  • For hygiene reasons we cannot accept the return of in-ear headphones that have been opened with the seal broken.
  • Video games cannot be returned if the seal is broken (unless faulty)

Want to return a faulty or damaged product? No worries - Smart Home Sounds will arrange a collection or exchange should this be necessary.

Full terms & conditions

Dolby Atmos Smart Speaker

Sonos Era 300

Sonos Era 300

Experience truly immersive audio with sound from every direction, putting you at the heart of the entertainment. The Era 300 is Sonos’ all-new bookshelf speaker, supporting Dolby Atmos and bringing you the thrill of spatial audio technology from a single unit.

  • Truly immersive stereo sound
  • Six optimally positioned drivers to support Dolby Atmos
  • Versatile connectivity with WiFi 6, Bluetooth 5.0, Airplay 2, Sonos app, Voice Control & more.
  • Line-in connectivity for external audio sources (adapter not included)
  • Unique design balances acoustic optimisation and an aesthetic finish
Sonos Era 300

3D spatial audio

Truly immersive sound

Truly immersive sound

As the first of its kind, the Era 300 delivers a truly immersive, spacious stereo performance supporting spatial audio and Dolby Atmos. 

Custom waveguides work to disperse audio all around to put you at the centre of the performance with no sweet spot. 

Six optimally positioned drivers project sound all around, from wall to wall and floor to ceiling.

Truly immersive sound

Packs a punch

Unique acoustic architecture

Unique acoustic architecture

Four tweeters deliver accurate playback of high and mid-range frequencies. The forward-facing mid tweeter projects vocals forward to deliver a performance that feels like you’re watching the artist live.

A pair of powerful mid-high tweeters project the sound to the far left and right of the room for a wider soundstage while two high-performance woofers bring impactful bass and a further sense of spaciousness. 

The upward-firing tweeter, angled around 10%, adds height to spatial audio content and reflects sound off the ceiling for a more dynamic experience. Loaded into a directional horn to enhance efficiency, phase lenses take the dispersion of high frequencies further, enabling the Era 300 to play louder, using less power.

Unique acoustic architecture

For music lovers

Immersive stereo performance

Immersive stereo performance

A single Era 300 delivers impressive stereo audio but a stereo pair takes things to another level. Experience room-filling spatial audio which captivates you in your entertainment.

Take your Sonos home cinema experience to new heights with a pair of Era 300 rear surround sound speakers. Designed to bring multichannel surround sound to a Sonos Arc or Sonos Beam (Gen 2), the combination of lateral and overhead channels in each products results in an all-encompassing soundstage for the ultimate great entertainment setup.

Immersive stereo performance

Control your way

Multiple methods of connectivity

Multiple methods of connectivity

Now with WiFi 6, enjoy high-quality audio streaming (including lossless) with no worry of interruptions. For added versatility, Sonos have added Bluetooth 5.0 connectivity so anyone can stream audio without needing to be on your WiFi network. The speaker must be set up over WiFi before using Bluetooth.

Alternative methods of connectivity include AirPlay 2 for Apple users and the Sonos S2 app. The app enables you to group different Sonos zones in your home, adjust EQ settings and stream from a large selection of services including Tidal, Spotify, Apple Music & Sonos Radio.

The Era 300 also has a far-field microphone array which uses advanced beamforming and multichannel echo cancellation for accurate voice control. Choose from Amazon Alexa or Sonos Voice to control playback hands-free.

Want some privacy? Use the microphone switch to cut the power to the microphones.

Multiple methods of connectivity

Your music, your way

Connect an external audio source

Connect an external audio source

Era 300 also features a line-in port so you can connect an external audio source like a turntable or CD player with an aux cable and Sonos line-in adapter (sold separately). Once connected, you can then stream to any other Sonos speakers on your WiFi network.

Alternatively, the line-in can be used to connect the speaker to your router with an ethernet cable and Sonos combo adapter.

Connect an external audio source

Perfect for any space

Unique aesthetic

Unique aesthetic

The Era 300 offers a truly unique design, encompassing the impressive acoustic architecture in an aesthetic, sleek unit. 

With intuitive touch controls, you have quick access to playback and more accurate control over the volume with an ergonomic slider.

Place Era 300 on a unit (recommended at least 2 feet overhead clearance) or optimise placement with the right Sonos accessory.

Our selection of Sonos Era 300 accessories include mounts and stands designed to minimise acoustic reflections and conceal the power cable as well as giving more flexibility over placement.

Unique aesthetic

Environmentally friendly

Designed with sustainability in mind

Designed with sustainability in mind

Sonos have created a more sustainable design for the Era 300, using post consumer-recycled plastics. The packaging is also 100% paper-based and made from sustainably sourced and recyclable fibres. 

The energy efficiency has also been optimised with software efficiency to reduce power consumption both when the speaker is playing audio and when it’s left idle.

Designed with sustainability in mind

What's the difference?

Sonos Era 300 vs Era 100 vs Sonos Five

Sonos Era 300 vs Era 100 vs Sonos Five

Sonos Era 100 is the evolution of the popular Sonos One (Gen 2), delivering impressive stereo sound performance.

Sonos Era 300 is an all-new entry into the Sonos lineup. Also a stereo speaker, it delivers an upgrade in sound and support for Dolby Atmos and immersive spatial audio.

Sonos Five is the ultimate Sonos speaker for the best high-fidelity listening and powerful bass. There is no support for Bluetooth or voice control on this speaker.

Sonos Era 300 vs Era 100 vs Sonos Five

For Android & iOS users

All-new Trueplay Tuning

All-new Trueplay Tuning

Trueplay tuning for Android and iOS devices - Sonos’ unique software to measure the acoustics of your space and optimise performance by adjusting the EQ.

  • IOS devices can use Advanced Tuning which uses the microphones in your iOS device.
  • Android users can use a Quick Tuning method which uses the microphones of the speaker to carry out Trueplay.

Note: if you use a pair of Era 300 speakers as surround sound rears with a Sonos soundbar, you will require a supported iOS device for Trueplay.

All-new Trueplay Tuning

Sonos Era 300 Lowdown

Sonos Era 300 Lowdown


+ Immersive spatial audio experience

+ Great for upwards-firing surround sound rears

+ WiFi 6 & Bluetooth 5.0 connectivity



- Bluetooth disabled when used as rears

Sonos Era 300 Lowdown

Sonos Era 300 FAQS

Sonos Era 300 FAQS

Can you use the Sonos S1 Controller with Era 300?

Era 300 requires the latest generation of the Sonos app (Sonos S2).

Where should you place Sonos Era 300?

The optimal placement for best sound quality is indoors with around 2 feet of overhead clearance. We don’t recommend placing Era 300 in an enclosed space like a bookshelf as it could impact dispersion and playback clarity. 

Can you stereo pair 2 x Sonos Era 300?

Yes. a pair of Era 300s deliver an even wider soundstage and more depth. You can also use a pair as rear speakers with a Sonos Arc or Sonos Beam (Gen 2).

What soundbars can you pair with Era 300 for surround sound?

As Era 300 is a multichannel rear speaker, it requires a Sonos soundbar that offers support for Dolby Atmos. Era 300 is compatible with Arc or Beam (Gen 2) but not with Playbar, Playbase, Beam (Gen 1) or Ray.

What is spatial audio?

Any audio in stereo is limited to left and right channels with elements localized within a horizontal place. Spatial audio technologies (Dolby Atmos) enable you to experience individual sounds around you in a 3D space. This gives a far more immersive and realistic listening experience. 

How can you experience spatial audio on Era 300?

To experience spatial audio, you’ll need to connect to WiFi and stream a Dolby Atmos track from a supported service. For movies, TV or games, you require 2 x Era 300 speakers paired with the Arc or Beam (Gen 2). You must have a supported TV, connection via HDMI eARC and Dolby Atmos content. 

Sonos Era 300 FAQS

Sonos Era 300 FAQs

Sonos Era 300 FAQs

Can you use Bluetooth as soon as you plug in the speaker?

No. You must set up Era 300 on WiFi via the Sonos app before you can pair a Bluetooth device. Note: Bluetooth is disabled if the speakers are setup as rears in a Sonos home cinema setup.

Can you use Bluetooth with a stereo pair?

Yes, you can stream audio via Bluetooth to a stereo pair.

Can you group speakers while using Bluetooth?

Yes. Like with the Sonos Roam and Move, you can group Era 300 with other products in your Sonos system via WiFi, even when playing content from a Bluetooth source?

How do you use line in with Era 300?

You will need to purchase a Sonos Line-In Adapter and a 3.5mm auxiliary cable to connect an audio device.

Can you use a third-party adapter for line in?

No. It’s recommended to use the Sonos Line-In Adapter for a reliable connection. The majority of USB-C to 3.5mm adapters on the market currently are intended for line out (headphones) and don’t support line in

Can you connect Era 300 to your TV?

The line-in connection is not designed to work with a TV and you would therefore experience latency and/or lip sync issues while the audio is converted from analog to digital. You can connect a pair of Era 300 speakers to a Sonos soundbar to be used as the rear surround sounds.

Is there an ethernet port on the Era 300?

There is no ethernet port on the Era 300. To hardwire your speaker, you can use the Sonos Combo Adapter, which features both an ethernet port and 3.5mm line input. These connections require an ethernet cable and aux cable.

Does voice control work on Bluetooth?

Sonos Voice Control supports essential playback controls (e.g. pause, adjust volume, skip and resume) on Bluetooth after you have selected content to stream from your paired device. 

Can you place Era 300 outdoors?

No. Era 300 is not weather rated and therefore not recommended for outdoor use.

Sonos Era 300 FAQs

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