Introduction
The Sonos Sub 4 is a wireless subwoofer designed to enhance your audio experience by delivering deep, dynamic bass. It pairs with your existing Sonos soundbar or speaker system to provide immersive sound for movies, television, and music. This model features an updated matte finish and dual force-canceling woofers to minimize distortion.
Key Features
- Dual Sonos-engineered drivers generate deep, dynamic bass.
- Ported enclosure enhances bass response and low-frequency output.
- Transforms home theater experience when paired with Sonos Arc Ultra, Arc, or Beam.
- Force-canceling acoustic architecture virtually eliminates distortion, buzz, and rattle.
- Iconic sculptural design and updated matte finish complement your Sonos system.
- Reliably connects to your Sonos soundbar or speaker over Wi-Fi for flexible placement.
- Plug-and-play setup with a single power cable and the Sonos app.
- Can be positioned upright or laid on its side, allowing placement under furniture.
- Supports pairing two Sub 4 units with Arc Ultra or Arc for enhanced immersion.
Setup
1. Unboxing and Placement
Carefully remove the Sonos Sub 4 from its packaging. The Sub 4 can be placed upright or laid on its side to fit various spaces, including under a sofa. Ensure it is near a power outlet.

Figure 1: Front-side view of the Sonos Sub 4 in white.

Figure 2: Front view of the Sonos Sub 4 in white.

Figure 3: Side view of the Sonos Sub 4 in white.

Figure 4: Back view of the Sonos Sub 4 in white, illustrating its dimensions.
2. Power Connection
Connect the provided power cable to the Sonos Sub 4 and plug it into a wall outlet. The Sub 4 is designed for plug-and-play setup.
Video 1: Demonstrates the easy plug-and-play setup of the Sonos Sub 4. The video shows connecting the power cable and the simple process of adding the device via the Sonos app.
3. App Connection
Download the Sonos app on your smartphone or tablet. Follow the in-app instructions to connect the Sub 4 to your existing Sonos system via Wi-Fi. The simple sync button on the side of the unit facilitates this process.
Operating the Sonos Sub 4
Audio Customization
The Sonos app allows for extensive customization of your audio experience. You can adjust bass levels (more or less) to suit your preferences for music or movies. The Sub 4 is designed to handle low frequencies, allowing your other Sonos speakers to focus on mid and high frequencies, resulting in a richer, more detailed sound profile.
Placement Options
The versatile design of the Sub 4 allows it to be placed upright or laid flat. This flexibility enables discreet placement, such as under a sofa, to enhance the tactile experience of bass rumbles without being visually prominent.

Figure 5: Sonos Sub 4 integrated into a living room home theater setup.

Figure 6: Sonos Sub 4 positioned discreetly next to furniture.
Compatibility
The Sonos Sub 4 is compatible with a range of Sonos products, including:
- Sonos Arc Ultra
- Sonos Arc
- Sonos Beam (Gen 2)
- Sonos Beam
- Sonos Ray
- Sonos Five
- Sonos Era 300
- Sonos Era 100

Figure 7: Visual representation of Sonos Sub 4 compatibility with various Sonos speakers and soundbars.
Maintenance
To maintain the performance and appearance of your Sonos Sub 4, regularly wipe the exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners. Ensure the area around the subwoofer is clear to allow for proper airflow and sound dispersion.
Troubleshooting
Wi-Fi Connectivity Issues
If you experience Wi-Fi connectivity problems or signal issues, try changing the wireless channel in the Sonos app settings. This can often resolve interference and improve connection stability.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Sub 4 |
| Item Model Number | SUBG4US1 |
| Brand | Sonos |
| Color | White |
| Material | Metal, Plastic |
| Product Dimensions | 6.22"D x 15.31"W x 15.83"H |
| Item Weight | 26.5 Pounds |
| Speaker Type | Subwoofer |
| Connectivity Technology | Wi-Fi |
| Control Method | App |
| Special Feature | Dolby Enabled, Multi Room Audio |
| Compatible Devices | Sonos Speaker, Sonos soundbar |
| Audio Driver Type | Dynamic Driver |
| Frequency Response | 20000 Hz |
| Mounting Type | Floor Standing |
| Indoor/Outdoor Usage | Indoor |
| UPC | 840136812791 |
What's in the Box
- Sonos Sub 4 Wireless Subwoofer
- Power Cable
- Quick Start Guide
Warranty and Support
The Sonos Sub 4 comes with a limited warranty. For detailed warranty information and customer support, please refer to the official Sonos website or the contact information provided in the Quick Start Guide.





