Short answer: the Sonos Sub 4 is the newer model that replaces the Sonos Sub (Gen 1), but only the Sonos Sub (Gen 1) has been measured and ranked so far, so this comparison is on specs and features rather than sound. The Sonos Sub (Gen 1) is discontinued, so it is now a used buy.
The case for the Sonos Sub 4: Two force-cancelling drivers face each other to cut cabinet buzz and rattle, and Sonos rates bass down to 25Hz.
On the Sonos Sub (Gen 1) side: The force-cancelling dual-driver design delivers clean, substantial bass without cabinet buzz, and it can stand upright or lie flat in spaces where a conventional subwoofer will not fit.
On paper: The Sonos Sub 4 is rated down to 25Hz against 40Hz, though makers quote these at different tolerances.
Price: the Sonos Sub 4 lists at $899 and the Sonos Sub (Gen 1) at $699.
Buy the Sonos Sub (Gen 1) if you want a speaker whose sound quality has been measured and ranked.
Buy the Sonos Sub 4 if you want the newer model, with deeper rated bass, and you can wait for measurements to confirm how it sounds.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Sonos Sub 4 | Sonos Sub (Gen 1) | |
|---|---|---|
| Price | $899.00 | $699 Discontinued |
| Ranked | - | #76 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, force-cancelling | sealed |
| Drivers | 2x force-cancelling drivers | 2x 4.5x7” (114x178mm) racetrack drivers, force-cancelling |
| Frequency Response | 25Hz extension (manufacturer specified) | 40Hz -3dB approx |
| Cabinet Color | black, white | black, white |
| Country | United States | United States |
| Output SPL at 31.5 Hz | - | 99.0 dB |
| Output SPL at 40 Hz | - | 110.9 dB |
| Output SPL at 50 Hz | - | 114.8 dB |
| Output SPL at 63 Hz | - | 114.9 dB |
| CEA-2010-A Average (40-80Hz) | - | 113.5 dB (avg of 3/4 bands) |
| Dimensions | - | 15.3”H x 15.8”W x 6.2”D (388.6 x 401.3 x 157.5 mm) |
| Weight | - | 36.4 lbs (16.5 kg) |
| Warranty | - | 1 |
| Measurement Source | - | Brent Butterworth |
Prices on this page were last checked September 29, 2026 at 3:43 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Sonos Sub 4: $899.00 Amazon eBay
Older model: the Sonos Sub (Gen 1) (rated 3.7/5).
Pros: Two force-cancelling drivers face each other to cut cabinet buzz and rattle, and Sonos rates bass down to 25Hz. Connects to a Sonos soundbar or speaker over Wi-Fi, so it can go anywhere with a power outlet, and sets up from the Sonos app.
Cons: No independent measurements yet, so its output can’t be compared with ranked subwoofers. It only works with Sonos soundbars and speakers, with no line-level input for any other system.
Full Sonos Sub 4 review and specifications →
| Cabinet Color | black, white |
|---|---|
| Country | United States |
| Drivers | 2x force-cancelling drivers |
| Enclosure | ported, force-cancelling |
| Frequency Response | 25Hz extension (manufacturer specified) |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
Sonos Sub (Gen 1): $699 Discontinued eBay
Newer model: the Sonos Sub 4. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.
Pros: The force-cancelling dual-driver design delivers clean, substantial bass without cabinet buzz, and it can stand upright or lie flat in spaces where a conventional subwoofer will not fit. It pairs wirelessly with Sonos speakers, with simple setup and system DSP that integrates it smoothly for movies and music.
Cons: It works only within a Sonos system, so it cannot serve as a conventional standalone subwoofer. At 16.5kg it is substantial to move, and reviews find its music bass can sound a little thick rather than fully articulate. This first-generation model is discontinued, so support and compatibility should be checked before buying used.
Notes: low profile (<8in)
Full Sonos Sub (Gen 1) review and specifications →
| CEA-2010-A Average (40-80Hz) | 113.5 dB (avg of 3/4 bands) |
|---|---|
| Cabinet Color | black, white |
| Country | United States |
| Dimensions | 15.3”H x 15.8”W x 6.2”D (388.6 x 401.3 x 157.5 mm) |
| Drivers | 2x 4.5x7” (114x178mm) racetrack drivers, force-cancelling |
| Enclosure | sealed |
| Frequency Response | 40Hz -3dB approx |
| Measurement Source | Brent Butterworth |
| Output SPL at 31.5 Hz | 99.0 dB |
| Output SPL at 40 Hz | 110.9 dB |
| Output SPL at 50 Hz | 114.8 dB |
| Output SPL at 63 Hz | 114.9 dB |
| Warranty | 1 |
| Weight | 36.4 lbs (16.5 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons