Sonos Era 300 Black Review | Wireless, Alexa Enabled Smart Speaker

If you’re looking to upgrade your home audio with a smart speaker that delivers true spatial sound, built-in voice control, and seamless integration, the Sonos Era 300 sits at the top of its class. It’s not just another smart speaker—it’s a full-featured system designed for immersive listening, whether you’re streaming music, watching movies, or building a multi-room Sonos ecosystem. In this review we’ll dive into what makes the Era 300 stand out, where it excels, and where you might want to temper expectations.

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Design & Build Quality — Bold Yet Refined

From the moment you unbox the Era 300, you’ll notice Sonos didn’t aim for subtle. The speaker’s “hourglass” or “figure-eight” silhouette is unique: wide front and back, cinched middle. It’s larger than many typical smart speakers but remains compact enough for shelf, side-table, or premium desktop placement.

The matte black finish (also available in matte white) and clean, minimal touch-controls on the top give it premium appeal. The build feels solid and confident: good weight, quality materials, and Sonos’s characteristic finish. The design is driven by purpose—because inside, the driver layout is multi-directional to support the immersive audio experience.

If you value aesthetics as much as acoustics, the Era 300 balances both: it makes a statement but still belongs in a modern living space.

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Cutting-Edge Driver & Amplification Setup — Immersive Sound Engineered

What truly sets the Era 300 apart is its acoustic architecture. Inside you’ll find six drivers: four tweeters (one up-firing, two side-firing, one forward-firing) plus two woofers (angled left and right). Each driver is powered by its own Class-D amplifier. This setup isn’t just for show—it’s built so the speaker can project sound not only frontwards, but sideways and upwards, creating a sound field that envelops the listening space rather than coming only from one point.

The up-firing tweeter is optimized for Dolby Atmos and spatial audio playback. When using Atmos-encoded music or a compatible movie source, you’ll get effects above you, around you, and with surprising width and depth for a single-box speaker. For smart speaker territory, this is a major leap.

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Features & Connectivity — Smart, Versatile and Future-Ready

The Era 300 is heavily feature-loaded. Some standout connectivity and smart features include:

• Wi-Fi (including 5 GHz support) and Bluetooth 5.0 — so you can stream from mobile, tablet, laptop or smart-TV.
• Apple AirPlay 2 support, making integration with Apple devices seamless.
• USB-C line-in (via adapter) for external sources (turntable, computer, etc.).
• Voice control: Amazon Alexa built in, plus Sonos Voice Control on top of the standard Sonos app ecosystem.
• Trueplay room-tuning (via Sonos app) to calibrate the speaker for your room’s acoustics—especially important for spatial audio.
• Multi-room / ecosystem friendly: Works with other Sonos speakers, can be stereo-paired, used as rears in a Sonos home-theater setup, etc.

In short: you’re getting not just a smart speaker, but a high-end hub for music, movies and multi-room audio.

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Performance — Wide Soundstage, Deep Bass, Immersive Atmos

Music Playback

Whether you’re listening to a stereo recording or a spatial-audio track, the Era 300 delivers. With stereo music, the speaker shows off width and clarity: vocals are distinct, instruments are placed precisely, and there is texture and depth. For spatial audio tracks (Dolby Atmos), the soundfield visibly expands: you get a feeling of space above you, behind you, and around you. Many reviewers found this breadth impressive for a single box.

The bass is strong for its size—while it won’t rival large floor-standing speakers with massive subwoofers, it handles rhythm, groove and low-end detail better than most smart speakers. Mids and highs are clean and articulate; Sonos has tuned the speaker to balance immediacy with musicality.

Movies, TV & Home Theater

Connected to a TV or living‐room setup, the Era 300 becomes a versatile sound-system upgrade. If used as part of a Sonos home-theater setup (e.g., as side/rear speakers paired with a Sonos soundbar), the spatial effects shine. The up-firing driver adds believable height cues, and the wide dispersion means off-axis listening (not exactly in the “sweet spot”) still works well. As a singular speaker for movies it’s still excellent, but the full benefit comes when used in pairs or as part of a surround array.

Everyday Use & Usability

The Era 300 is easy to live with: after the setup and Trueplay calibration, you can just hit play and enjoy. The Sonos app is mature, touch controls responsive, voice assistants work reliably. For wireless streaming, it is seamless. While some edge cases (like line-in adapter not included) exist, overall the user experience is polished.

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Pros & Cons

✔️ Pros:

• Immersive spatial audio performance via Dolby Atmos and multi-driver design
• Excellent build quality and premium finish
• Smart features: Alexa built-in, Sonos Voice Control, AirPlay 2, Bluetooth, Wi-Fi
• Works with the Sonos ecosystem: multi-room, stereo pairing, home-theater expansion
• Strong musical performance for both stereo and spatial audio tracks

❌ Cons:

• Premium price point (higher than many standard smart speakers)
• Unique shape may not blend seamlessly into all décor or shelf spaces
• Line-in adapter (USB-C) sold separately
• Spatial audio content support still limited (you’ll need compatible tracks/services)
• For deep-sub bass and massive room fill, larger setups may outperform

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Verdict — A Refined Investment in Immersive Home Audio

If you’re serious about your audio, not just smart functionality, the Sonos Era 300 is a standout. It bridges the gap between smart speaker convenience and high-end listening experience. You’re not getting “just another speaker to stream Spotify” — you’re getting a system capable of spatial, multi-directional sound, premium smart features, and integration into a serious listening ecosystem.

If you already have a Sonos system, or you’re building a premium living-room audio experience (for music and movies), the Era 300 is a smart, forward‐looking choice. It delivers a compelling mix of performance, flexibility and brand ecosystem value.

On the flip side, if your budget is tight, you only stream standard stereo content, or you primarily focus on ultra-low bass in a large room, you might consider more traditional stereo speakers or a larger multi-component setup. But if your goal is immersive, high-quality wireless audio, the Era 300 is an excellent investment.

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