Setting up multiroom audio means linking speakers in different rooms so they can play music in perfect sync, or independently under one app, without wiring anything between rooms. In the UK there are five practical routes: buy into a dedicated ecosystem like Sonos, use the multiroom grouping already built into Amazon Alexa or Google Home if you own their speakers, use Apple AirPlay 2 if you're in the Apple ecosystem, or run Home Assistant with the Music Assistant integration to unify speakers you already own across brands. The right choice depends less on budget and more on what speakers are already in the house — most people should build on what they've got rather than replacing it.
What do you actually need before starting?
You need at least two Wi-Fi-connected speakers, a stable home Wi-Fi network that reaches every room you want to cover, and a phone with the relevant app installed. Every speaker in a group has to sit on the same Wi-Fi network — a speaker on a guest network or a separate band won't show up as an option in any of the five systems below. Bluetooth speakers generally can't join a multiroom group at all; the grouping protocols in this guide (AirPlay 2, Alexa Multi-Room Music, Google speaker groups, Sonos, Music Assistant) all rely on Wi-Fi, not Bluetooth, to keep playback in sync across rooms.
Which multiroom system should you choose?
The table below compares the five routes on cost, cross-brand compatibility, and what's required to get started.
| System | Works with | Cross-brand? | Typical cost | Best for |
|---|---|---|---|---|
| Amazon Alexa Multi-Room Music | Echo devices, Alexa-built-in speakers | No — Echo only | Free with existing Echo devices | Homes already running two or more Echos |
| Google Home speaker groups | Nest/Google Home speakers, Chromecast-built-in | No — Google ecosystem only | Free with existing Nest devices | Homes already running Nest speakers |
| Apple AirPlay 2 | HomePod, AirPlay 2-certified speakers | Partial — any AirPlay 2 speaker, any brand | Free; speaker cost only | iPhone/iPad households with AirPlay 2 speakers |
| Sonos | Sonos speakers only (plus AirPlay 2 input) | No — Sonos hardware only | From around £150 per speaker | Buying a dedicated system from scratch |
| Home Assistant + Music Assistant | Sonos, Chromecast, AirPlay, Squeezebox, and more via one hub | Yes — mixes brands in one group | Free add-on; needs an existing Home Assistant install | Home Assistant users with mismatched speaker brands |
How do you set up multiroom audio with Amazon Alexa?
If you already own two or more Echo devices, Alexa's Multi-Room Music feature costs nothing extra and takes a few minutes to set up. In the Alexa app, open Devices, tap the + icon, choose Combine speakers, then Multi-Room Music, and follow the prompts to pick which devices join the group. Alexa also auto-creates a default group called “Everywhere” the moment you have more than one eligible device on the account. Amazon Music, Spotify, Apple Music and TuneIn all work through a Multi-Room Music group. Our full Alexa multiroom setup guide covers the app steps, voice commands and fixes for sync lag in more depth, and our Amazon Echo UK review compares which current Echo models support grouping if you're buying your first two.
How do you set up multiroom audio with Google Home?
Google's approach mirrors Alexa's: open the Google Home app, tap the + icon, and choose Create speaker group, then select which Nest or Chromecast-built-in speakers to include and give the group a name. Once created, casting audio to the group name plays it in sync everywhere, and you can say “Hey Google, play [artist] on [group name]” instead. Like Alexa, this only works across Google's own hardware — it won't group a Nest speaker with an Echo. See our Google Home speaker group setup guide for the full walkthrough and troubleshooting steps.
How does Apple AirPlay 2 handle multiroom audio?
AirPlay 2 is the most flexible of the ecosystem-native options because it isn't limited to one manufacturer's hardware — any AirPlay 2-certified speaker from any brand, plus HomePods, can join the same group. All speakers need to be on the same Wi-Fi network and set up once in the Apple Home app. From there, playback control lives in Control Center: open the Now Playing card, tap the AirPlay icon, and select multiple speakers or rooms to start synced playback across all of them, or ask Siri to “play music in the kitchen and living room.” A permanent stereo pair of two HomePods in the same room is set up separately, from the Home app's device details screen.
Is Sonos still worth it if you're starting from scratch?
Sonos remains the dedicated option built specifically for multiroom from the ground up, rather than a feature bolted onto a voice assistant. Speakers group and ungroup from the Grouping menu in the Sonos app, or by pressing and holding the play/pause button on any two speakers that should join together; frequently-used groupings can be saved as presets once a system has three or more products. Sonos speakers also accept AirPlay 2 input, so an iPhone household can cast to a Sonos system without needing the Sonos app open. The trade-off is cost — Sonos speakers start at around £150 and the system only groups with other Sonos hardware, so it's a bigger commitment than using speakers you already own. Our Sonos vs Denon HEOS comparison and best multiroom speakers UK round-up cover how it stacks up against rival dedicated systems if you're buying new.
Can Home Assistant do multiroom audio without buying a dedicated system?
Yes — this is the route worth knowing about if your speakers are a mismatched mix of brands, because it's the only one of the five that groups across ecosystems. The Music Assistant integration for Home Assistant connects to a running Music Assistant server (version 2.4 or later, run as an add-on or in its own Docker container) and creates a Home Assistant media player entity for every player and group it finds. Inside the Music Assistant web UI you can build permanent player groups — say, a Sonos speaker in the kitchen alongside a Chromecast-connected speaker in the living room — and play synchronised audio across both, something none of the four ecosystem-native options above can do on their own. It also supports transferring a playing queue from one speaker to another and centralises Spotify, Tidal and local library playback in one interface. Our Home Assistant media player guide covers setting up media player entities in more detail if you're new to controlling audio through Home Assistant.
How do you fix multiroom audio that's out of sync or dropping out?
Almost every multiroom sync problem traces back to Wi-Fi rather than a fault with the app itself. A few checks that resolve most issues across all five systems:
- Confirm every speaker is on the same Wi-Fi network and band — a speaker bounced onto a guest network or a different band by the router won't sync with the rest of the group.
- Reduce 2.4GHz congestion by moving speakers away from microwaves and thick walls, or switching them to the 5GHz band where the router and speaker both support it.
- Check for a Bluetooth connection — none of these systems sync audio over Bluetooth, so a speaker linked that way needs to be re-paired over Wi-Fi or wired in via line-in instead.
- Restart the speaker that keeps dropping — unplugging power for a few seconds and reconnecting clears a stuck sync session more often than it should.
- Update the router's firmware and, if the house is large, consider mesh Wi-Fi so every room has a strong signal rather than relying on one router at one end of the house.
If you're still deciding which system fits your home, the honest shortcut is to check what you already own first — Echo owners get Alexa's Multi-Room Music for free, Nest owners get Google's grouping for free, and only households with a genuinely mixed set of brands, or a Home Assistant install already running, need to look at Music Assistant or a fresh Sonos purchase.
