Sonos Sub 4
Sonos Sub 4
$899.00
- Authorized Dealer · Tech Support · 30-Day Returns
Why it stands out
✓
Best for
×
Not ideal for
Shop with confidence
Why buy from EMiUZEK
We help you choose, connect and maintain your system—not just ship a box.
- ✓Authentic products
- ✓Compatibility guidance
- ✓Fast tracked shipping
- ✓Firmware and driver support
- ✓Clear warranty process
- ✓Responsive after-sales help
Setup guide
How to connect
What you should know
EMiUZEK buying notes
Frequently asked questions+
View full technical specifications+
Official product information provided by sonos+
The following product descriptions, specifications and images are provided by the manufacturer.
Add deeper, cleaner bass to a compatible Sonos soundbar or speaker system. Sub 4 uses dual inward-facing 5 × 8-inch woofers in a ported enclosure, reaches as low as 25 Hz and connects over WiFi for flexible upright or horizontal placement.
Why it stands out
Force-cancelling woofers
Dual inward-facing drivers reduce cabinet vibration and audible distortion.
Bass to 25 Hz
The ported cabinet extends low-frequency impact for films and music.
Trueplay integration
Room tuning balances the subwoofer with compatible Sonos speakers.
Flexible placement
Use it upright or lay it flat where ventilation and clearance allow.
Best for
- Arc Ultra, Arc, Beam or Ray systems
- Larger rooms
- Film and game impact
- Music systems with Five or Era speakers
- Dual-Sub Arc Ultra systems
Not ideal for
- Non-Sonos systems
- Small rooms better suited to Sub Mini
- Wired RCA/LFE connections
- Buyers needing a battery-powered subwoofer
EMiUZEK Buying Notes
- Sub 4 requires a compatible amplified non-portable Sonos product.
- It has no conventional RCA/LFE input.
- Dual-subwoofer support depends on the bonded Sonos home-theatre product and compatible Sub generations.
FAQ
How low does it play?
Sonos specifies frequency response as low as 25 Hz.
Is it wireless?
Audio links to the Sonos system over WiFi; the subwoofer still requires mains power.
Can I connect it to an AV receiver?
No conventional LFE input is provided.
Can it lie flat?
Yes. Sonos supports upright or horizontal orientation.
Which products are compatible?
Sonos lists products including Arc Ultra, Arc, Beam, Ray, Five, Era 300 and Era 100.
Can I use two?
Arc Ultra supports compatible dual-Sub configurations; verify the exact generations before purchase.
What changed from earlier Sub models?
Sub 4 adds updated electronics, more memory, a faster processor, WiFi 6 and lower idle power use.
Does Trueplay tune the bass?
Yes, as part of a supported Sonos room setup.
HOW TO CONNECT
- Power — Place Sub 4 upright or flat and connect the power cable.
- Add in Sonos app — Choose Add Product and bond Sub 4 to a compatible room.
- Tune and adjust — Run Trueplay where supported, then adjust Sub Audio level and phase in the app.
Technical Specifications
| Feature | Specification |
|---|---|
| Amplifiers | Dual Class-D digital |
| Woofers | Dual 5 × 8 in elliptical, inward-facing |
| Architecture | Ported, force-cancelling |
| Frequency response | As low as 25 Hz |
| Connection | WiFi; WiFi 6 radio |
| Orientation | Upright or horizontal |
| Dimensions | 389 × 402 × 158 mm |
| Weight | 11.79 kg |
| Finish | Black or white matte |
| Trueplay | Supported with compatible system |
| Wired audio input | None |
| Power requirement | Nearby mains outlet |
| App | Current Sonos app required |
Additional Product Content
Comparison: choose the right product
| Decision point | Sonos Sub 4 | Sonos Sub Mini |
|---|---|---|
| Low-frequency extension | As low as 25 Hz | Not specified by Sonos on the compared product page |
| Drivers | Dual 5 × 8-inch force-cancelling woofers | Dual 6-inch force-cancelling woofers |
| Placement | Upright or horizontal | Compact upright cylinder |
| Best room | Medium to large | Small to medium |
What's in the box, manuals and downloads+
Shipping, warranty and returns+
Worldwide Tracked Shipping
We provide tracked international shipping with delivery options and estimated delivery times shown during checkout.
Official Warranty Support
All products sold by EMIUZEK are genuine products with manufacturer warranty support.
Our HiFi specialists provide assistance with compatibility, setup, and technical questions.
Easy Returns
Eligible returns are available according to our return policy.
Please contact EMIUZEK before returning any product so we can provide assistance.