Sonos built the Era 300 around spatial audio from the ground up rather than retrofitting it into a standard speaker form factor. Six drivers — two angled upward for height channels, two facing forward, one facing left, one facing right — recreate the overhead reflection cues that Dolby Atmos and Sony 360 Reality Audio mixes rely on. In a medium-sized room with Dolby Atmos music from Apple Music or Tidal, the difference versus a standard stereo speaker is immediately audible, not subtle.
Trueplay room calibration uses the built-in microphone array to measure the room’s acoustics and adjust EQ in real time. Line-in via USB-C accepts a vinyl source or any 3.5mm-equipped device. Apple AirPlay 2, Spotify Connect, and the Sonos app give you a wide range of source options without requiring the Sonos streaming service specifically.
The Era 300 can be paired as a stereo pair with a second unit for a full left/right spatial experience, or used as rear surrounds with a Sonos Arc soundbar for a complete home theatre system. Compact for what it achieves acoustically at 10.24 inches tall, it fits on a bookshelf without dominating the room.
| Drivers | 6 total: 2× up-firing tweeters, 2× forward-facing tweeters, 1× left-angled mid-woofer, 1× right-angled mid-woofer |
|---|---|
| Amplifiers | 6 Class-D amplifiers (one per driver) |
| Spatial Audio | Dolby Atmos, Sony 360 Reality Audio, Sonos Spatial Audio |
| Connectivity | Wi-Fi 6, Bluetooth 5.0, USB-C line-in (analogue via adapter) |
| Streaming | AirPlay 2, Spotify Connect, Sonos app, Amazon Music, Tidal, Qobuz |
| Dimensions | 10.24 × 7.28 × 6.30 in |
| Weight | 6.73 lbs (3.05 kg) |
| Controls | Touch volume/pause, auto-mute microphone button |
| In the box | Era 300, Power cable, Quick-start guide |
Hana Park –
I was sceptical that spatial audio from a single speaker could be worth a premium over a standard bookshelf speaker. In a 12 × 14 foot living room, Dolby Atmos tracks on Apple Music create an overhead sensation that’s genuinely surprising the first few times. The Trueplay calibration improved the low-end noticeably compared to without it.
Benjamin Kruse –
Beautiful speaker and impressive spatial audio capability. Paired with an Arc for my living room system, the surround effect for movies is excellent. Note that spatial audio only engages for specific Dolby Atmos tracks — for standard stereo playback this is a very good but not exceptional speaker at this price point.