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Choose the Sub Mini if you want a smaller subwoofer and your Sonos system is on its compatibility list; choose the Sub 4 if your system supports it and you can accommodate its larger, heavier cabinet. Sonos describes the Sub Mini as suited to small-to-medium spaces, but does not publish a square-foot cutoff for either model. Check your exact speaker model and generation before deciding.
Sonos Sub 4 vs. Sub Mini at a glance
The current full-size model is the Sub 4. The comparison below uses Sonos’s US product listings and the prices displayed when accessed on October 7, 2026. Those prices are promotional listings, not guaranteed checkout prices or stable manufacturer suggested retail prices.
| What to compare | Sonos Sub Mini | Sonos Sub 4 |
|---|---|---|
| Room guidance | Sonos describes it as suited to small-to-medium spaces; no square-foot boundary is stated in the cited Sonos material. | No numeric room-size guidance is stated in the cited Sonos comparison. |
| Dimensions (height × width × depth) | 12.01 × 9.06 × 9.06 inches | 15.31 × 15.83 × 6.22 inches |
| Weight | 14 lb | 25.99 lb |
| Soundbar models listed by Sonos | Beam, Ray | Arc Ultra, Arc, Beam |
| Speaker models listed by Sonos | Era 100, Era 100 SL; the Sub Mini product page also names One and One SL | Era 300, Era 100, Five |
| Listed frequency response | 25 Hz | 25 Hz |
| US price displayed October 7, 2026 | $399 promotional price; $499 reference price displayed on the product page | $749 promotional price; $899 reference price displayed on the comparison page |
Compatibility and displayed prices come from Sonos’s US comparison and Sub Mini product pages. Sonos can update product lists and prices, so verify both on its current pages before purchase.
Which model suits your room?
Choose Sub Mini when space and placement matter most
Sub Mini’s 9.06-inch width and depth and 12.01-inch height make it the more compact option. Sonos says it can sit beside furniture or under a desk or table, which may help in a room where a larger cabinet would be difficult to place. Its small-to-medium-space description is qualitative: it is not a rule that determines suitability from a room’s square footage.
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- Dual Sonos-engineered drivers generate deep, dynamic bass
- Ported enclosure enhances the bass response and low-frequency output
- Transform your home theater experience when you pair with Sonos Arc Ultra, Arc, or Beam
- Force-canceling acoustic architecture virtually eliminates distortion, buzz, and rattle
- Iconic sculptural design and updated matte finish that matches your Sonos system
Choose Sub 4 when its larger cabinet works for your setup
Sub 4 is 15.83 inches wide and 25.99 pounds, so check the actual space and route you will use to position it. It is taller than Sub Mini but substantially shallower, so height alone is not a useful fit check. Sonos does not give a numerical room-size threshold for the Sub 4.
Room dimensions are only one part of the decision. Placement, your existing Sonos equipment, budget, and the bass experience you want all matter; the published room guidance does not establish that a particular room requires one model.
Rank #2
- Dual Sonos-engineered drivers generate deep, dynamic bass
- Ported enclosure enhances the bass response and low-frequency output
- Transform your home theater experience when you pair with Sonos Arc Ultra, Arc, or Beam
- Force-canceling acoustic architecture virtually eliminates distortion, buzz, and rattle
- Iconic sculptural design and updated matte finish that matches your Sonos system
Check compatibility before choosing
Sonos’s US comparison lists the Beam and Ray soundbars with Sub Mini, and Arc Ultra, Arc, and Beam with Sub 4. For speakers, it lists Era 100 and Era 100 SL with Sub Mini, and Era 300, Era 100, and Five with Sub 4. Sonos’s Sub Mini product page additionally names One and One SL as examples.
- Identify the exact Sonos product you want to pair, including its model generation.
- Look it up in Sonos’s current subwoofer compatibility information rather than relying on the product family name alone.
- Confirm the selected subwoofer is listed for that model before buying; the published compatibility lists may change.
What setup requires
For Sub Mini, Sonos lists an amplified, non-portable Sonos product, the latest-generation Sonos app on a compatible device, an internet connection, a Wi-Fi router, and a nearby power outlet as requirements. The box includes a six-foot power cable. The product also lists a 10/100 Ethernet port for a wired connection.
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- Surround yourself in the story: Go deeper into every scene with spatial audio. Dolby Atmos and the upward-firing drivers work in concert to immerse you in a multidimensional soundstage. You’ll hear planes as if they’re flying overhead, sense footsteps moving across the room, and feel the music swell all around you.
- Feel the bass: Experience every rumble, roar, and beat you've been missing with clean, pulse-pounding bass. Sub 4 takes over the lowest frequencies so paired speakers are free to focus on midrange and high frequencies so everything sounds even clearer.
- Wonderfully wireless: Place Sub 4 anywhere in the room. It connects to the soundbar over WiFi, so you can create the setup that works best for your space.
- Perfectly tuned for the room: Using the microphones in your iOS device, Trueplay tuning technology analyzes the unique acoustics of your space and optimizes the EQ. So all your content sounds just the way it should.
- Breeze through setup: Simply plug in the power cable, connect your phone or tablet to WiFi, and open the Sonos app. It will guide you through connecting the soundbar to your TV and syncing your TV remote for streamlined control.
Sonos’s Trueplay room tuning measures room acoustics and fine-tunes the sound; using it requires a supported iOS device. If you do not have one, that requirement affects access to Trueplay, not the physical fit of the subwoofer.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the published specifications can—and cannot—tell you
Sonos lists a 25 Hz frequency response for both models in its comparison. That matching figure does not establish that they produce equally strong bass: frequency response alone is not a comparative output or loudness test. Sonos says Sub Mini uses dual inward-facing 6-inch woofers, but the cited official sources do not provide an independent, measured head-to-head output test.
Rank #4
- Unlock your entertainment when you pair Sub Mini with Beam or Ray and experience dramatic depth that puts you inside your shows, movies, and games.
- Within the acoustically sealed cabinet, dual custom woofers generate the full-toned low frequencies of a much larger subwoofer. Advanced processing further enhances the bass response.
- Both woofers face inward to create a force-canceling effect that neutralizes distortion.
- Trueplay tuning technology adapts the bass for your room's acoustics so it won't sound harsh, muddy, or flat—even if you place Sub Mini next to the wall. Supported iOS device required.
Accordingly, the published figures support a comparison of dimensions, weight, compatibility, and listed frequency response—not a claim that one model will sound stronger in a particular room.
Quick Recap
Best Value
- 1,【Compatibility】solid wood stand applicable for Sonos Sub 4 black and white model, make the sonos sub 4 speaker to stay on the wooden mount, don't worry about slip off and fall out in using.
- 2,【Unique Design】the metal frame accessories strength is sufficient,it's hard to deform after have tested for may times.The wooden stand with right size can match sonso sub 4 better. it's good for sound and easy to install.but not take much space.
- 3,【Black Walnut】The wood stand is made of walnut from North America, it's 100% real wood with coating. the black walnut color is suit for all of color from echo studio, more places and occasions.the metal frame is made of stainless with coating, not rust.
- 4,【waterproof holder for speaker on floor】wooden holder height is very suitable to support the Sonos Sub 4 speaker, avoide the erosion by water on floor . Avoid the robotic vacuum cleaner hitting your sonos sub 4 and prevent people from accidentally kicking your sub 4 while walking .
- 5，【compatibility for】 compatible for Sonos Sub 2,Sonos Sub 3,Sonos Sub 4.
Make the decision
- Pick Sub Mini if it is listed for your exact Sonos product and its compact footprint better fits the intended spot.
- Pick Sub 4 if it is compatible with your system and its wider, heavier cabinet is practical for your room.
- Pause and verify if compatibility is unclear; do not assume two products in the same Sonos family support the same subwoofer.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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