Sonos Sub 4 - Wireless Subwoofer - Black
Quick take
Sonos Sub 4 is a premium wireless subwoofer made to deepen bass in Sonos home theater setups. It’s designed for easy pairing with compatible Sonos soundbars and speakers over Wi‑Fi using the Sonos app, with placement flexibility thanks to wireless setup. The biggest buying caveat is that it’s an ecosystem product, so if you want a universal, non-Sonos subwoofer, you may need to look elsewhere.
Pros and cons
Pros
- Built with dual Sonos-engineered drivers for deep, dynamic bass performance.
- Force-canceling acoustic design aims to reduce distortion, buzz, and rattle.
- Wireless Wi‑Fi connection to a compatible Sonos soundbar or speaker, for flexible placement.
- Plug-and-play setup using a single power cable and the Sonos app.
Cons
- Best results depend on pairing with compatible Sonos soundbars or speakers, so it is not a universal add-on.
- It’s a premium subwoofer purchase, so value depends on how much you’ll use movies, TV, and bass-forward music.
What buyers think
Buyer-review evidence is strongly positive around bass impact and overall immersion when used as part of a Sonos home theater system. Multiple reviews mention that pairing the Sub 4 with Sonos soundbars meaningfully improves low-end depth and “cinematic” impact. Reviewers also highlight convenience, describing setup as straightforward through the Sonos app and appreciating the wireless approach for finding a good placement spot.
At the same time, the review evidence provided is limited in breadth (no detailed pattern about long-term reliability, connectivity edge cases, or audio tuning behavior beyond initial setup). So, while the bass upgrade story is consistent, it’s harder to confirm how the sub performs in every room layout or under all network conditions based only on these excerpts.
What the sonos sub 4 is for
Sonos Sub 4 is meant to complement Sonos soundbars and Sonos speakers by adding dedicated low-frequency output. If your current Sonos setup feels “complete” for dialogue and midrange, but you want more weight for explosions, rumbling sound effects, bass-heavy playlists, or overall cinematic immersion, this is the type of upgrade you’re shopping for.
It’s also a good fit if you prefer an app-based, whole-home-friendly approach. The Sub 4 is built around Wi‑Fi connectivity, works with the Sonos app, and supports multi-room audio, so you can keep your system aligned with the rest of your Sonos gear.
Design and audio approach (the “why it sounds bigger” part)
Sub 4 uses dual drivers engineered by Sonos and places emphasis on clean output at low frequencies. It features a ported enclosure designed to enhance bass response and low-frequency output. It also includes a force-canceling acoustic architecture intended to virtually eliminate distortion, buzz, and rattle.
On the physical side, it’s designed to blend into a living space with an updated matte finish and a sculptural look. You can position it upright or lay it on its side to help you match your furniture layout.
Setup experience: plug it in, pair it in the app
Sonos Sub 4 is designed for simplicity. The setup experience is described as plug-and-play, with a single power cable and pairing through the Sonos app. Because it connects over Wi‑Fi to compatible Sonos products, you can avoid running speaker wire for the sub itself, which typically makes placement easier.
If you already own a Sonos soundbar (Arc Ultra, Arc, Beam are listed as compatible pairings), adding Sub 4 is typically less intimidating than starting from scratch. The Sonos ecosystem approach also means the system can manage your room experience and integration within the Sonos app environment.
Placement and room-fit considerations
Wireless connectivity gives you placement flexibility, but bass still depends on your room. Use the ability to stand the sub upright or lay it on its side to find a spot that works best with your seating position and open areas. If your room has highly reflective surfaces or unusual layouts, expect some trial and adjustment through your Sonos app settings to get the bass you want.
Pros and cons summary
- Best for: people building (or expanding) a Sonos home theater system who want noticeably deeper bass from their existing soundbar setup.
- Also a strong fit if: you want wireless placement convenience and an app-driven setup experience.
- Consider this if you’re sensitive to: distortion artifacts at low volume levels, since the design focuses on force-canceling and cleaner bass output.
- Who should avoid: buyers who want a universal subwoofer that works with non-Sonos audio systems, or buyers looking for a budget alternative.
Price and availability
Sonos Sub 4 is a premium-priced wireless subwoofer, typically positioned for customers who already own Sonos soundbars or Sonos speakers. Availability can vary by retailer, so it’s worth checking the current listing if you’re ready to buy.
Alternatives (how to choose without one brand name)
If you’re deciding between Sonos Sub 4 and other subwoofers, compare based on these criteria:
- System compatibility: choose Sonos Sub 4 when you’re committed to a Sonos soundbar ecosystem. Choose a different brand if you need universal compatibility with your current TV or receiver.
- Setup style: Sub 4 fits buyers who prefer app-led pairing and wireless placement. Wired subs can be simpler if you’re comfortable with running cable and using receiver-based audio.
- Bass priorities: Sub 4 targets deep, immersive low-end output with a design focused on reducing distortion artifacts. If you mostly listen at lower volumes, consider whether you want “felt” bass or just a smoother low-end blend.
- Budget vs. ecosystem: premium wireless subs can cost more, so value depends on how often you use movies and music and how complete your current system already is.
Verdict
Sonos Sub 4 is a strong choice for Sonos owners who want a clearer step up in bass depth and home theater immersion. The combination of dual-driver design, force-canceling architecture, and wireless Wi‑Fi integration makes it a convenient and cohesive upgrade, especially when paired with compatible Sonos soundbars. It may not be the right purchase if you need a universal subwoofer outside the Sonos ecosystem or you’re shopping strictly by price.
FAQ
What devices can I pair with Sonos Sub 4?
Sonos Sub 4 is designed to pair with compatible Sonos soundbars or speakers over Wi‑Fi, including Sonos Arc Ultra, Arc, and Beam.
Is Sonos Sub 4 wireless, and does it need speaker wire?
Yes, it connects wirelessly over Wi‑Fi to compatible Sonos products. Setup is described as using a single power cable, with pairing handled through the Sonos app.
How hard is setup?
Setup is designed to be plug-and-play. You power the sub, then pair and fine-tune it through the Sonos app.
Will Sonos Sub 4 improve bass for movies and TV?
Across the available review excerpts, buyers consistently report that adding Sub 4 creates a more immersive, bass-forward experience for action movies and TV, with low frequencies feeling more present.
Can I use Sonos Sub 4 with a non-Sonos audio system?
Sonos Sub 4 is an ecosystem-focused product that’s meant to work with compatible Sonos soundbars or speakers. If you need a universal subwoofer for a non-Sonos setup, you’ll want to check compatibility carefully or consider an alternative that’s designed for your specific audio gear.
Can the sub be placed under furniture?
Yes. It can be placed upright or laid on its side, which makes it easier to tuck the sub under a sofa or arrange it around your room layout.
Specifications
| Product Title | Sonos Sub 4 - Wireless Subwoofer - Black |
|---|---|
| Category | Electronics > Home Audio > Speakers > Subwoofers |
| Brand | Sonos |
| Manufacturer | Sonos |
| Model Name | Sub 4 |
| Model Number | SUBG4US1BLK |
| Color | Black |
| Material | Metal, Plastic |
| Item Weight | 26.46 Pounds |
| Audio Output Mode | Stereo |
| Mounting Type | Floor Standing |
| Enclosure Material | Metal, Plastic |
| Speaker Type | Subwoofer |
| Additional Features | Dolby Enabled, Multi Room Audio |
| Antenna Location | For Televisions, Home Theater |
| Is Waterproof | FALSE |
| Warranty Type | Limited |
| Control Method | App |
| Speaker Size | 15.83 Inches |
| Specific Uses For Product | Home Theatre, Party |
| MP3 player | No |
| Number of Audio Channels | 5.1 |
| Connectivity Technology | Wi-Fi |
| Wireless Technology | Wi-Fi |
| Subwoofer Connectivity Technology | Wireless |
| Connectivity Protocol | Wi-Fi |
| Built-In Media | Power Cable, Quick Start Guide |
Available variants
Color
- Black
- White
Recommended next
Klipsch R-12SW Powerful Deep Bass Front Firing 12" Copper-Spun Driver 400W Digital Power Subwoofer
The Klipsch R-12SW is a front-firing 12-inch powered subwoofer built for adding punch and depth to music and home theater. It uses a 400W all-digital amplifier, includes low-pass crossover and phase control, and offers both line and LFE inputs for easier receiver integration. The main catch for buyers is that bass can sound “boomy” or muddy at first if crossover and gain are not dialed in.
Sonos Sub Mini - Black - Compact Wireless Subwoofer
Sonos Sub Mini is a compact wireless subwoofer designed to add deeper, clearer low-end to compatible Sonos soundbars and speakers like Beam and Ray. It’s praised for quick setup and noticeably improved bass, with one recurring setup caution for tuning/activation. If you want bigger-sub style impact in a smaller space, it’s a strong fit, but the iOS requirement and premium price may be dealbreakers for some buyers.
Dayton Audio BST-1 High Power Pro Tactile Bass Shaker 50 Watts RMS, 4 Ohms Impedance
The Dayton Audio BST-1 is a high-power tactile bass transducer designed to turn furniture, home theater seating, or sim rigs into a felt “subwoofer” experience. It’s popular for immersive gaming and movies, but you will need the right 4-ohm compatible amp, proper mounting, and some tuning to get clean, controlled feedback.
Soundbar with Subwoofer for TV, Home Theater Bluetooth 5.3 Speaker System with 2 Wireless Karaoke Mics
A budget-friendly 2.1-channel TV soundbar system from SunTrok that adds a wired 5.5-inch subwoofer for deeper bass and includes two wireless karaoke microphones. Best for casual movie nights, music, and home karaoke, but buyers should confirm TV connection compatibility (HDMI ARC and optical) before skipping troubleshooting.