Set up your Sonos Arc Ultra

This article will help you get started with setting up your Sonos Arc Ultra. We'll also make sure you're connected properly for Dolby Atmos, provide information on adding surrounds and a Sub, and show you how to add a voice assistant. You can find more information on product features and specs on Arc Ultra’s product page.

Before you start

Download the Sonos app for iOS or Android. Your Arc Ultra needs to be set up using the Sonos app before it can play TV audio.
Place Arc Ultra in your desired location and connect it to power.
Keep the included HDMI cable ready nearby. The Sonos app will guide you on which cables and ports to use when connecting your Arc Ultra to your TV.

Set up a new Sonos system with Arc Ultra

Open the Sonos app for iOS or Android.
Select Speaker or component, then create or sign in to your Sonos account.
Select Add on the popup showing your Sonos Arc Ultra.
Follow the steps in the app to set up your Arc Ultra and add your content services.

Add Arc Ultra to your existing system

Open the Sonos app for iOS or Android.
Go to the Settings menu and select Add Speaker or Component.
Follow the steps in the app to add Arc Ultra to your Sonos system.

Problems during setup?

If your Sonos Arc Ultra is having trouble connecting during setup, check our “Product not found” article for some help.

Using a Sub and surround speakers with Arc Ultra

Once your Arc Ultra has been set up, you can use the Sonos app to add a Sub and rear surround speakers to your home theater setup. You can find instructions on how to add these in the articles below:

Surround speaker and Sub compatibility

You can find a list of surround speakers and Subs that are compatible with Arc Ultra in our surround sound guidelines and limitations article.

Listen to Dolby Atmos on Arc Ultra

Arc Ultra must be connected to your TV’s HDMI-ARC input to play Dolby Atmos content. If Arc Ultra is receiving an Atmos signal, the Sonos app will show an Atmos badge on the "Now Playing" screen. You can also check the TV audio format within the app’s Settings menu.

For more information, see our article on playing Dolby Atmos on Sonos.

Control Arc Ultra with your voice

With Sonos Voice Control or Amazon Alexa added to your Arc Ultra, you can use your voice to turn your TV on and off as well as adjust the TV volume.

To use these commands, Arc Ultra must be connected to your TV’s HDMI-ARC or HDMI-eARC input and your TV needs to have HDMI-CEC enabled. Voice commands for turning the TV on and off will not work if Arc Ultra is connected via optical adapter.