Exact model-family answer directory

Sonos home speakers and soundbars troubleshooting

Sonos home speakers and soundbars (Arc Ultra, with the Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini in the model notes): release (from the Wikipedia page); hardware; sound motion woofer, and a fix for each symptom below.

PairingOne sideNo soundDisconnectingNot chargingBattery life

Part of Sonos audio model troubleshooting guide

Reviewed records

11 exact answers

Diagnose the exact device problem

Sonos · firmware

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) app or firmware update will not complete

Open record Sonos · audio delay

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) audio is delayed or out of sync

Open record Sonos · no sound

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) connects but has no sound

Open record Sonos · disconnecting

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) keeps disconnecting

Open record Sonos · microphone

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) microphone sounds bad or is not detected

Open record Sonos · reset

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) needs a safe reset or will not reset

Open record Sonos · one side

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) plays from only one side or channel

Open record Sonos · distorted

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) sounds distorted, muffled or unbalanced

Open record Sonos · voice assistant

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) voice assistant or controls are not working

Open record Sonos · multiroom

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) will not group, sync or play in multiple rooms

Open record Sonos · pairing

Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) will not pair or connect

Open record

Confirm the model first

Which units this covers, and how to tell yours is one of them

Model numbers and patterns: Arc Ultra, with the Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini in the model notes
Not applicable to this hardware: This Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini) does not have the hardware for: will not charge; battery runs out too quickly.

Published specification

What is true of this model and changes how you fix it

Official specifications
15 Class-D amps, 9 tweeters (2 upward-firing), 6 midwoofers, and a 4-motor 'Sound Motion' woofer for bass without a separate sub. Wi-Fi 6, Bluetooth 5.3 — the only Sonos soundbar in this catalog with native Bluetooth streaming.
Type — flagship Dolby Atmos soundbar (WiFi + eARC)
Sonos's top soundbar with Dolby Atmos and Sound Motion bass tech. It connects to the TV by HDMI eARC (not optical) and to your network by WiFi. So 'no TV sound' is the eARC/HDMI-CEC link, while streaming/grouping issues are WiFi/app.
WiFi-first — most issues are network/app
Like all Sonos, it is controlled through the Sonos app over your WiFi. A speaker that 'disappears' from the app is almost always a network issue (band-steering, a changed router, or 2.4/5 GHz problems), not a hardware fault — before resetting, check the network.
Atmos needs the whole chain
Dolby Atmos requires the TV's eARC port and an Atmos source; if Atmos is missing, confirm the TV is passing it and the app shows Atmos. Add Sonos surrounds/sub over WiFi for full surround.
Release (from the Wikipedia page)
Released October 29, 2024 at $999 as the successor to the Arc.
Hardware
2 GB SDRAM and 8 GB of storage, twice what the Arc has.
Sound motion woofer
A Sound Motion woofer for stronger bass, with a surround speaker array.
Also covered
Ray soundbar, release (from the Wikipedia page): Released June 7, 2022 at $279 as Sonos's entry-level soundbar.
Also covered
Ray soundbar, hardware: 1 GB SDRAM and 4 GB of storage.
Also covered
Era 100 speaker, release (from the Wikipedia page): Released March 28, 2023 at $249 as the replacement for the One Gen 2.
Also covered
Era 100 speaker, hardware: A smart speaker with 1 GB SDRAM and 8 GB of storage.
Also covered
Sub (Gen 3), release (from the Wikipedia page): Released June 8, 2020 at $699 as the replacement for the Sub Gen 2, a wireless subwoofer.
Also covered
Sub (Gen 3), hardware: 256 MB SDRAM and 256 MB of storage.
Also covered
Sub Mini, release (from the Wikipedia page): Released October 6, 2022 at $429 as a cylindrical wireless subwoofer.
Also covered
Sub Mini, pairing: It pairs with AirPlay-enabled Sonos speakers, with 4 GB SDRAM and 4 GB of storage.

Where these figures were read. sonos.com/en-us/shop/arc-ultra.html (Arc Ultra 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. Wikipedia — Sonos.

Exact questions

Questions that only have an answer for the Sonos home speakers and soundbars (Arc Ultra, Arc, Beam Gen 2, Ray, Era 300, Era 100, Sub Gen 3 and Sub Mini)

My Sonos Arc Ultra has no sound from the TV.+

Connect it to the TV's HDMI eARC (or ARC) port specifically, and enable HDMI-CEC on the TV (each brand names it differently — Anynet+, SIMPLINK, Bravia Sync), plus set the TV audio output to the external/ARC system. Power-cycle the TV and soundbar to renegotiate the HDMI handshake. If the TV has no HDMI ARC/eARC, an optical adapter is needed. Streaming still works over WiFi even when the TV link has a problem.