Sonos Sub 4 9.1.4 wireless subwoofer

The essentials

If you want fuller, more immersive home audio, the Sonos Sub 4 wireless subwoofer is built for exactly that. It is designed to add deeper low end while helping sound move around the room in a more precise way. With an all new acoustic architecture and Sound Motion technology, it aims to fill more of your space and position sounds so you can feel more of the action 🎧. For many people, that extra sense of scale makes movies, sport, and games feel more grounded.

You also get the kind of spatial surround experience that works especially well with Dolby Atmos. According to the manufacturer, the system supports an unparalleled 9.1.4 spatial audio experience with Dolby Atmos, so dialogue and effects can sit where you expect them. Speech Enhancement can further refine clarity, which matters if you regularly watch content where voices get lost behind sound effects. 🎥

On the practical side, the design is meant to blend into your living room rather than take attention away from your entertainment. Control is available through your TV remote, the Sonos app, touch controls, Sonos Voice Control, and amazon Alexa. Setup is straightforward thanks to a single HDMI eARC connection to your TV, plus step by step guidance in the Sonos app. It also includes Trueplay for room fine tuning, helping the sound match your layout.

Tech specs

• Name: Sonos Sub 4 wireless subwoofer
• Type: Wireless subwoofer
• Colour: Black
• Audio format: Dolby Atmos
• Spatial audio: 9.1.4
• Connectivity: Single HDMI eARC connection to your TV
• App control: Sonos app with room tuning via Trueplay

Key features

The standout idea behind this subwoofer is Sound Motion and acoustic architecture that are designed to work through the whole room, not just from one spot. Instead of treating bass as a simple extra layer, the technology is meant to help create a more accurate placement of sounds around you. That can make the overall mix feel more coherent, particularly when paired with compatible Sonos home theatre setups.

Dolby Atmos support brings height and dimensional effects into the experience, with the manufacturer describing a 9.1.4 spatial audio experience. In everyday viewing, that often means the soundtrack feels more layered, with details that do not collapse into one direction. Ultraclear dialogue is also part of the experience, and Speech Enhancement can help make voices clearer when you need them to cut through. 👂

Control options are designed for whichever routine you already use. You can adjust things with your TV remote, the Sonos app, touch controls on the device, Sonos Voice Control, or Amazon Alexa. If you prefer a clean setup, the single HDMI eARC connection helps keep wiring straightforward, and the Sonos app provides guided steps. There is also Trueplay, so you can quickly fine tune the sound for the room after installation.

It is worth noting that some features depend on having the right compatible Sonos setup and supported content, as with most home audio systems using immersive audio formats. Still, the combination of spatial processing, dialogue refinement, and app based tuning gives you a practical path to better sound without needing complicated audio knowledge. ✅

What’s included

You get the Sonos Sub 4 wireless subwoofer in black as the main unit for adding deeper low end to your setup. The product description also points to an effortless setup approach using a single HDMI eARC connection to your TV and guided steps in the Sonos app. After installation, you can use the app to run Trueplay tuning so the sound better matches your room. For control, you have multiple ways to manage playback and settings, including app access, touch controls, and voice control with compatible assistants.

What you’ll notice day to day

It is the kind of upgrade that tends to show up quickly in film nights and game sessions, where low frequency impact and overall immersion make a noticeable difference 🎮. Many listeners find that the system helps everything feel more connected, rather than having dialogue and effects behave like separate layers. If you regularly watch programmes where voices need extra help, Speech Enhancement can be a simple way to improve clarity.

It also stays practical for everyday use. Controls through the TV remote and the Sonos app mean you can adjust the sound without constantly reaching for extra devices. The room tuning guided by the app makes it easier to get better results even if your room layout is not ideal. Over time, that combination can make your home theatre setup feel consistent across different viewing sessions and content types.