Sonos Sub 4 review: Thumping

You don't need to add the Sub 4 to your Sonos home theatre system, but it adds a really nice bass boost for your movie's explosions, without drowning out the dialogue.

The Sonos Sub 4 sitting next to an entertainment unit

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Pros

  • Easy setup
  • No distortion at all
  • Solid bass performance

Cons

  • Trueplay reduces bass level too much
  • Previous generation costs the same

If you’re looking to set up a soundbar or home theatre system, you don’t need a subwoofer. You can get excellent sound without one.

But adding one (or more!) into the mix really helps fill your entertainment with a much bigger sound stage.

Announced alongside the new Sonos Arc Ultra, the Sub 4 offers a few minor tweaks over the Sub 3. It’s not enough to warrant an upgrade, but if you are looking to expand your Sonos system with an extra bass unit, then this is a great place to start.