Short answer: the SVS SB-2000 Pro is the proven choice, measured and ranked among subwoofers, while the newer Sonos Sub 4 has no independent measurements yet and can only be compared on specs.
What the Sonos Sub 4 offers: Two force-cancelling drivers face each other to cut cabinet buzz and rattle, and Sonos rates bass down to 25Hz.
What the SVS SB-2000 Pro brings: Sealed 12” with 550W RMS, 1500W peak Sledge amplifier.
On paper: The Sonos Sub 4 is rated down to 25Hz against 220Hz, though makers quote these at different tolerances.
Buy the SVS SB-2000 Pro if you want a speaker whose sound quality has been measured and ranked.
Buy the Sonos Sub 4 if you want deeper rated bass, and you can wait for measurements to confirm how it sounds.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Sonos Sub 4 | SVS SB-2000 Pro | |
|---|---|---|
| Price | $899.00 | $899.00 each |
| Ranked | - | #58 of 146 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | ported, force-cancelling | sealed |
| Drivers | 2x force-cancelling drivers | 12” (305mm) driver |
| Frequency Response | 25Hz extension (manufacturer specified) | 19-240Hz ±3dB |
| Cabinet Color | black, white | black |
| Country | United States | United States |
| Output SPL at 20 Hz | - | 102.5 dB |
| Output SPL at 25 Hz | - | 113.3 dB |
| Output SPL at 40 Hz | - | 114.0 dB |
| Output SPL at 50 Hz | - | 114.1 dB |
| Output SPL at 63 Hz | - | 115.9 dB |
| Output SPL at 80 Hz | - | 115.0 dB |
| CEA-2010-A Average (40-80Hz) | - | 114.7 dB |
| Dimensions | - | 14.6”H x 14.2”W x 15.6”D (370.8 x 360.7 x 396.2 mm) |
| Weight | - | 38.6 lbs (17.5 kg) |
| Warranty | - | 5 |
| Measurement Source | - | Erin’s Audio Corner |
| Amplifier Power | - | 550W RMS, 1500W peak |
Prices on this page were last checked September 30, 2026 at 2:57 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
SVS SB-2000 Pro: $899.00 each Amazon eBay
Older models: the SVS SB-2000 (ranked higher, rated 3.9/5) and the SVS SB12-Plus (ranked lower, rated 3.6/5).
Pros: A compact sealed 12-inch subwoofer, about 37cm on each side, with a 550W RMS (1,500W peak) Sledge amplifier and SVS’s smartphone app for volume, crossover, phase, room gain compensation and parametric EQ from the listening seat. Erin’s Audio Corner measured a 114.7dB CEA-2010-A average from 40 to 80Hz, and SVS rates it at 19-240Hz within 3dB.
Cons: Output is modest next to larger or ported subwoofers: Erin’s Audio Corner measured about 102.5dB at 20Hz, and he judged the SB-3000, about $200 more, the better value for its considerably higher output. Sealed designs this size run out of headroom sooner in large rooms.
Full SVS SB-2000 Pro review and specifications →
| Amplifier Power | 550W RMS, 1500W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 114.7 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 14.6”H x 14.2”W x 15.6”D (370.8 x 360.7 x 396.2 mm) |
| Drivers | 12” (305mm) driver |
| Enclosure | sealed |
| Frequency Response | 19-240Hz ±3dB |
| Measurement Source | Erin’s Audio Corner |
| Output SPL at 20 Hz | 102.5 dB |
| Output SPL at 25 Hz | 113.3 dB |
| Output SPL at 40 Hz | 114.0 dB |
| Output SPL at 50 Hz | 114.1 dB |
| Output SPL at 63 Hz | 115.9 dB |
| Output SPL at 80 Hz | 115.0 dB |
| Warranty | 5 |
| Weight | 38.6 lbs (17.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- SVS SB-2000 Pro vs JBL HDI-1200P
- SVS SB-2000 Pro vs Power Sound Audio (PSA) XS15SE
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- SVS SB-2000 Pro vs Rythmik F12
- See all 22 comparisons