Exact model-family answer directory
Sonos Era 300 speaker troubleshooting
Sonos Era 300 speaker (Era 300): what the Era 300 is; how it connects; spatial audio needs the right source; resetting the speaker; sound quality and placement; wi-Fi first, and a fix for each symptom below.
- What the Era 300 isThe Sonos Era 300 is a mains-powered Wi-Fi speaker built for Dolby Atmos spatial audio, with 6 Class-D amplifiers, 4 tweeters, one up-firing in a directional horn, two side-firing for stereo separation, and 2 angled woofers. It has Wi-Fi 6 and Bluetooth 5.3.
Confirm the model first
Which units this covers, and how to tell yours is one of them
- Model numbers and patterns
- Era 300
Published specification
What is true of this model and changes how you fix it
- Official specifications6 Class-D amps, 4 tweeters (one upward-firing in a directional horn for Atmos, two side-firing for stereo separation), 2 angled woofers. Wi-Fi 6, Bluetooth 5.3.
- Type — mains WiFi speaker with spatial audioA mains-powered WiFi speaker built for Dolby Atmos spatial audio (up-firing and side-firing drivers). Streams over WiFi via the Sonos app, and also has Bluetooth and a USB-C line-in (with an adapter). It can be a rear surround for a Sonos soundbar.
- WiFi-firstPrimarily WiFi through the Sonos app; a speaker missing from the app is usually a network issue. Bluetooth is a secondary direct-connect option.
- Spatial audio needs the right sourceIts Atmos/spatial effect needs spatial-audio content (e.g. Amazon Music Unlimited/Apple Music Atmos tracks); on normal stereo it plays as a very good stereo speaker, which is expected.
- How it connectsIt streams over Wi-Fi through the Sonos app, and also has Bluetooth as a secondary direct connection and a USB-C line-in with an adapter. It can act as a rear surround for a Sonos soundbar.
- Spatial audio needs the right sourceThe Atmos effect needs spatial content, such as Atmos tracks from Amazon Music Unlimited or Apple Music. On ordinary stereo it plays as a very good stereo speaker, which is expected.
- Resetting the speakerA reset returns the speaker to its factory state, so it can be added as new, and is the step after a power cycle fails. It is done with a button on the back.
- Sound quality and placementSound depends on where the speaker stands: near a wall, a bass boost, and room correction through Trueplay tune the sound to the room.
- Wi-Fi firstA speaker missing from the app is usually a network matter; Bluetooth is a secondary option.
- Finding the modelThe model is printed on the underside of the Era 300; Sonos support asks for the serial number.
Where these figures were read. sonos.com/en-us/shop/era-300.html (Era 300 Tech Specs)
Manufacturer support for this product line. Sonos Support — Product support. Official Sonos setup, network, grouping, playback and home-theater support.
Also read for this model. Sonos Support — Sonos support.
Exact questions
Questions that only have an answer for the Sonos Era 300 speaker
My Sonos Era 300 doesn't sound 'spatial' on my music.+
Spatial audio needs Dolby Atmos Music content and a service that provides it (such as Amazon Music Unlimited or Apple Music's Atmos catalog) — on ordinary stereo tracks the Era 300 plays excellent stereo, not spatial, which is expected. Make sure you are playing Atmos-tagged tracks from a supported service in the Sonos app. Its up-firing and side-firing drivers only create the immersive effect when the source actually contains it.
My Sonos Era 300 does not sound spatial on my music. Why?+
The music is not Atmos content.
How do I reset it?+
Use the button on the back as the guidance shows.
Does it have Bluetooth?+
Yes, 5.3.
Where is the model label?+
On the underside.