As an Amazon Associate I earn from qualifying purchases. How our links work

BUYING GUIDES / UNITED KINGDOM

Sonos Arc Ultra or Era 300: start with the room

A soundbar for television and a speaker for music solve different problems. Start with what you listen to and where it needs to work.

Living Select UK · 14 September 2026 · Based on published information, not hands-on testing.

Contains affiliate links. We may earn a commission if you buy through them. How our links work.

TV or music?

Arc Ultra is a home-cinema soundbar that connects to a television through HDMI eARC/ARC. Era 300 is a separate speaker suited to music and compatible Sonos configurations. Sonos provides setup and compatibility information for each. Do not assume that one Era 300 replaces a soundbar under your television. Arc Ultra details · Era 300 details.

DecisionArc UltraEra 300
Starting pointTelevision and home cinemaMusic listening and compatible room setups
Displayed quantityOne soundbarOne speaker
Costs to checkOptional subwoofer, rear speakers and mountingA second speaker, stands and connection accessories if needed

Avoid the quantity trap

A photograph of a finished room can suggest a whole system even when a price covers one component. The price below for Era 300 is for one speaker. If you want two, compare the retailer’s pair offer with two individual units. Likewise, an Arc Ultra price does not automatically include a subwoofer or rear speakers.

Plan the room before adding components

Measure the space under the screen and check that the soundbar will not obstruct it. For a separate speaker, consider where power is available and whether furniture blocks the proposed placement. Follow Sonos’s spacing and setup guidance for the final position. If you rent, include any mounting permissions in your decision.

Confirm the final order

Check your TV connection, supported music services and the exact configuration before purchasing. Then enter your postcode at the retailer for the available delivery date. If you order components from different sellers, their delivery dates and return processes may differ. Starting with the component that solves your main need makes it easier to judge whether an expansion is useful.

Compare the selected packages

Dated UK reference prices, not live Amazon prices. The retailer confirms the selected package, final total and delivery date for your postcode.

Sonos Arc Ultra

Sonos · Audio & television

Arc Ultra

£999

UK reference price · 14 Sep 2026Soundbar only
Quantity / package
1 soundbar; subwoofer and rear speakers separate
UK delivery
Enter your postcode at the retailer to see the delivery date and cost.

A premium soundbar for shoppers building a Sonos-based home cinema around their main television.

Before you buy

Check the TV’s HDMI eARC support and the space below the screen. A subwoofer or rear speakers are separate purchases.

Manufacturer information ↗UK reference price source ↗
Shop Now ↗Affiliate link · Amazon UK · Check final price
Sonos Era 300

Sonos · Audio & television

Era 300

£499

UK reference price · 14 Sep 2026One speaker
Quantity / package
1 speaker; a stereo pair requires 2
UK delivery
Enter your postcode at the retailer to see the delivery date and cost.

A distinctive wireless speaker for a music-focused room or a compatible Sonos home-cinema system.

Before you buy

Placement affects the experience. Check service support, connection requirements and whether your intended setup needs a pair.

Manufacturer information ↗UK reference price source ↗
Shop Now ↗Affiliate link · Amazon UK · Check final price

Read the price, package and delivery checklist →

Living Select UK: rounded stone L and walnut S

Living Select, one tap away.

Add our icon to your home screen. Return to the residence, explore the collections and find your next piece.

Use the steps below to add Living Select to your home screen.

iPhone or iPad · Safari
  1. Open this website in Safari.
  2. Tap Share (the square with an upward arrow).
  3. Choose Add to Home Screen. If shown, turn on Open as Web App, then tap Add.
Android · Chrome
  1. Open this website in Chrome.
  2. Tap the three-dot menu.
  3. Choose Add to Home screen or Install app, then follow the confirmation.
Computer · Chrome, Edge or Safari
  1. In Chrome or Edge, look for the install icon beside the address bar, or the browser menu's option to install this site as an app.
  2. On a Mac with a supported version of Safari, choose File → Add to Dock.
  3. If no install option is offered, open the site in Chrome or Edge, or save a bookmark for quick access.
Download the round icon · PNG

Downloading the icon saves the image. To add the app, use the installation steps above. An internet connection is needed to browse products and open shopping links.

The LS artwork is circular; your device controls the outer app-icon shape.