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Sonos Era 300 Review: Spatial Audio That Fills the Room — No Soundbar Required

Six drivers, beamforming, Trueplay tuning, and Dolby Atmos — the first wireless speaker that makes spatial audio feel real, not a gimmick.

9 min read
4.7
Sonos Era 300 in white on a bookshelf showing its distinctive hourglass shape

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Gallery

Cutaway showing six drivers: 2 woofers, 2 side tweeters, 1 upward tweeter, 1 forward tweeter
Six drivers: dual woofers (bass), dual side tweeters (width), upward tweeter (height), forward tweeter (clarity)
iPhone running Trueplay tuning with microphone waving around the speaker
Trueplay: iPhone mic measures room acoustics, optimizes EQ per position
Two Era 300s as stereo pair flanking a TV
Stereo pair + TV eARC = immersive home theater without soundbar

Pros

  • Genuine spatial audio: 6 drivers beam Dolby Atmos height/width — sounds *around* you
  • Trueplay (iOS) + Quick Tune (Android) = room-corrected sound in 2 minutes
  • Sonos ecosystem: multiroom, AirPlay 2, Spotify Connect, Alexa, line-in (via adapter)
  • Stereo pair = incredible soundstage; add Sub + 2 Era 300s = 7.1.4 Atmos home theater
  • Bluetooth 5.0 + USB-C line-in (with combo adapter) for turntables/TV
  • Hourglass design is beautiful, stable, fingerprint-resistant matte finish

Cons

  • $449 each — stereo pair = $898, full Atmos setup = $2,000+
  • No Google Assistant (Alexa only, or Sonos Voice Control)
  • Line-in requires $19 USB-C combo adapter (not included)
  • Trueplay requires iPhone (Android gets basic Quick Tune only)
  • App still has occasional connectivity bugs on mesh networks

Who Should Buy This

  • Music lovers wanting spatial audio without headphones
  • Home theater builders wanting wireless Atmos (stereo pair + Sub)
  • Sonos ecosystem users expanding multiroom

Our Verdict

The **Sonos Era 300** is the **first wireless speaker that makes Dolby Atmos spatial audio feel real**. Six drivers beam sound off walls/ceiling — you hear height, width, immersion. Trueplay tuning makes it work in any room. At $449, it's an investment; a stereo pair transforms music and movies. For Sonos households, it's a no-brainer. For newcomers, it's the gateway to wireless immersive audio.

Specifications

Drivers
6 Class-D amplifiers: 2× woofer (bass), 2× side tweeter (width), 1× upward tweeter (height), 1× forward tweeter (clarity)
Spatial Audio
Dolby Atmos (Apple Music, Amazon Music, Tidal), Sony 360 Reality Audio
Tuning
Trueplay (iOS mic), Quick Tune (Android, less precise)
Connectivity
Wi-Fi 6, Bluetooth 5.0, AirPlay 2, Spotify Connect, Alexa, Sonos Voice Control
Ports
USB-C (line-in with Sonos Combo Adapter, $19), Ethernet (via adapter)
Multiroom
Sonos S2 app — group with any Sonos speaker
Stereo Pair
Two Era 300s = L/R spatial; add Sub (Gen 3) + 2 Era 300s rear = 7.1.4 Atmos
TV Audio
eARC via Sonos Arc/Arc Ultra/Beam; Era 300s as surrounds
Dimensions
7.2 x 6.3 x 4.8 in (183 x 160 x 122 mm)
Weight
9.85 lb (4.47 kg)
Colors
White, Black
Power
45W typical, 65W max
Check Price: $449

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