Short answer: the Atlantic Technology 224SB. Both are rated 3.7/5 for sound quality (#77 and #76 of 145 subwoofers), and the Atlantic Technology 224SB costs $673 against $699 for the Sonos Sub (Gen 1), so with nothing between them on sound quality, price settles it.
What the Sonos Sub (Gen 1) does well: 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. The tradeoff: It works only within a Sonos system, so it cannot serve as a conventional standalone subwoofer.
Why pick the Atlantic Technology 224SB: 10-inch sealed with 180W delivers powerful compact bass with exclusive Clear Filter Technology (CFT) for clean articulate response.
Worth knowing: the Sonos Sub (Gen 1) has been discontinued and is hard to find new at this point.
Buy the Atlantic Technology 224SB. Both are rated the same for sound quality, and it costs $26 less than the Sonos Sub (Gen 1).
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Sonos Sub (Gen 1) | Atlantic Technology 224SB | |
|---|---|---|
| Price | $699 Discontinued | $673 Discontinued |
| Ranked | #76 of 145 in Medium Home Subwoofers (30-75 lbs) | #77 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 31.5 Hz | 99.0 dB | 97.6 dB |
| Output SPL at 40 Hz | 110.9 dB | 103.8 dB |
| Output SPL at 50 Hz | 114.8 dB | 112.3 dB |
| Output SPL at 63 Hz | 114.9 dB | 118.1 dB |
| CEA-2010-A Average (40-80Hz) | 113.5 dB (avg of 3/4 bands) | 113.3 dB |
| Dimensions | 15.3”H x 15.8”W x 6.2”D (388.6 x 401.3 x 157.5 mm) | 13.2”H x 13.2”W x 15.4”D (336.5 x 336.5 x 391.2 mm) |
| Weight | 36.4 lbs (16.5 kg) | 31.1 lbs (14.1 kg) |
| Warranty | 1 | 3 |
| Cabinet Color | black, white | black |
| Country | United States | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Frequency Response | 40Hz -3dB approx | 33-250Hz |
| Drivers | 2x 4.5x7” (114x178mm) racetrack drivers, force-cancelling | 10” (254mm) driver |
| Output SPL at 20 Hz | - | 88.2 dB |
| Output SPL at 25 Hz | - | 90.6 dB |
| Output SPL at 80 Hz | - | 119.1 dB |
| Amplifier Power | - | 180W RMS |
| Output SPL at 16 Hz | - | 80.8 dB |
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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 (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
Atlantic Technology 224SB: $673 Discontinued eBay
Pros: 10-inch sealed with 180W delivers powerful compact bass with exclusive Clear Filter Technology (CFT) for clean articulate response. Well-deserved reputation for power and impact without sacrificing detail. Inherently low distortion sealed design.
Cons: Discontinued.
Full Atlantic Technology 224SB review and specifications →
| Amplifier Power | 180W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 113.3 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 13.2”H x 13.2”W x 15.4”D (336.5 x 336.5 x 391.2 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | sealed |
| Frequency Response | 33-250Hz |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 80.8 dB |
| Output SPL at 20 Hz | 88.2 dB |
| Output SPL at 25 Hz | 90.6 dB |
| Output SPL at 31.5 Hz | 97.6 dB |
| Output SPL at 40 Hz | 103.8 dB |
| Output SPL at 50 Hz | 112.3 dB |
| Output SPL at 63 Hz | 118.1 dB |
| Output SPL at 80 Hz | 119.1 dB |
| Warranty | 3 |
| Weight | 31.1 lbs (14.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.