Sonos Era 300

Last updated: 22 March 2026

What is the Sonos Era 300?

The Sonos Era 300 is a wireless smart speaker built from the ground up for spatial audio. Launched in March 2023, it was Sonos's first speaker designed specifically to play Dolby Atmos music, and it marked a significant step up from the popular Sonos One. Its distinctive "cinched hourglass" design isn't just for looks. The shape is engineered to house six drivers pointing in different directions, creating a 3D soundstage that fills a room from a single speaker.

It works as a standalone speaker, as part of a stereo pair, or as Dolby Atmos surround rears when connected to a Sonos Arc Ultra, Arc, or Beam (Gen 2) soundbar. For Sonos households already running a home cinema setup, a pair of Era 300s as rear speakers is one of the most effective upgrades you can make.

Key features

Spatial audio with Dolby Atmos: Six drivers (four tweeters and two woofers), each powered by its own class-D amplifier, are positioned to fire sound forwards, sideways, and upwards. The upward-firing tweeter is loaded into a directional horn designed to bounce sound off the ceiling. Custom waveguides disperse audio across the room. The result is a wide, immersive soundstage that genuinely surrounds you, especially with Dolby Atmos tracks from Apple Music, Amazon Music, and Tidal.

Sound quality: Beyond spatial audio, the Era 300 is an excellent stereo speaker. Bass is punchy and surprisingly deep for its size, mids are clear and detailed, and highs are crisp without harshness. What Hi-Fi? awarded it five stars, praising its performance across all genres and formats. Trueplay tuning uses your phone's microphone to map the room's acoustics and optimise the speaker's output accordingly.

Connectivity: WiFi 6 for high-quality audio streaming (including lossless), Bluetooth 5.0 for quick pairing from any device, AirPlay 2 for Apple users, and Spotify Connect for direct streaming. There's also a USB-C port for line-in via a Sonos Line-In Adapter (sold separately), letting you connect a turntable, CD player, or other audio source.

Voice control: Built-in microphone array supports Sonos Voice Control and Amazon Alexa. A physical mic mute switch on the back cuts power to the microphones for privacy. Note that Google Assistant is not supported.

Multi-room and home cinema: The Era 300 integrates fully with the Sonos ecosystem. Group it with other Sonos speakers for multi-room audio, pair two for stereo, or use a pair as Dolby Atmos surround rears with a compatible Sonos soundbar. When used as rears, the upward-firing drivers add genuine overhead Atmos effects to your home cinema setup.

Design: Available in Black and White. The hourglass form factor is distinctive and divisive, but it's functional. It's larger than the Era 100 and designed to sit on a shelf, table, or dedicated stand. Sonos recommends positioning it at least 20cm from the wall for best spatial audio performance.

How much does the Sonos Era 300 cost?

The Sonos Era 300 has an RRP of £449. Street prices have dropped over time, with deals regularly appearing around £329-£399 depending on the retailer and colour. It's been spotted as low as £329 during seasonal sales.

You can also find the Era 300 refurbished through Back Market at a meaningful discount, with warranty and quality checks included. Sonos also runs its own Certified Refurbished programme for those who prefer to buy direct.

Who is the Sonos Era 300 best for?

The Era 300 is ideal if you want the best possible sound from a single smart speaker and care about spatial audio. It's particularly well-suited to Apple Music and Amazon Music subscribers who have access to Dolby Atmos tracks. It's also a strong pick for anyone looking to build or upgrade a Sonos home cinema system, where a pair of Era 300s as rear surrounds makes a noticeable difference.

If spatial audio isn't a priority and you want a more compact, affordable Sonos speaker, the Era 100 is a better starting point. For a personal listening experience rather than room-filling sound, the Sonos Ace headphones are worth considering instead. We've published a full Sonos Ace review if you'd like to compare.

For more options, see our best smart speakers UK roundup.

Sonos Era 300: specifications

Frequently asked questions

Does the Sonos Era 300 support Spotify?

Yes. The Era 300 supports Spotify Connect and you can stream from Spotify via the Sonos app or WiFi. However, Spotify does not currently offer Dolby Atmos tracks, so you won't get spatial audio from Spotify. For spatial audio, you'll need Apple Music, Amazon Music, or Tidal.

Can you use the Sonos Era 300 as surround speakers?

Yes. A pair of Era 300s can be used as Dolby Atmos rear surround speakers with a compatible Sonos soundbar (Arc Ultra, Arc, or Beam Gen 2). The upward-firing drivers add genuine overhead Atmos effects, which is a significant upgrade over using Era 100s as rears.

Does the Sonos Era 300 work with Google Assistant?

No. The Era 300 supports Sonos Voice Control and Amazon Alexa only. Google Assistant is not available on this speaker.

How does the Sonos Era 300 compare to the Apple HomePod?

Both are premium smart speakers with spatial audio support. The Era 300 has a more complex driver arrangement (six vs five) and supports Dolby Atmos natively. The HomePod integrates more tightly with Apple devices and HomeKit. The Era 300 costs £449 vs £299 for the HomePod 2, but offers a wider, more immersive soundstage. If you're in the Apple ecosystem and want simplicity, the HomePod is hard to beat. If sound quality and spatial audio are top priority, the Era 300 has the edge.

Can you buy the Sonos Era 300 refurbished?

Yes. Sonos offers its own Certified Refurbished programme, and you can also find the Era 300 on Back Market at a discount with warranty included.

This page contains affiliate links. If you buy through these links, we may earn a small commission at no extra cost to you. Prices are correct at the time of writing and may vary.

More from CoolCuration

• Sonos Ace headphones – Sonos's first over-ear headphones with ANC and TV Audio Swap.
• Amazon Echo Studio – A more affordable Dolby Atmos smart speaker alternative.
• Back Market discount code – Save on refurbished tech including Sonos speakers.
• Best smart speakers UK – Our picks for the best home audio across every budget.
• Octopus Energy – Save on your energy bills and put the difference towards premium audio.
• Hive thermostat – Another smart home upgrade that pairs well with a Sonos setup.

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