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Start by checking the exact Sonos home theater model: Sub Mini works with Sonos Arc-family products, Beam generations, Ray, Playbar, and Playbase, while Sub 4 does not work with Playbar or Playbase. If both options fit your system, compare their dimensions, weight, placement needs, and local price—not an assumed room-size rating or universal sound-quality ranking.

Which Sonos subwoofer works with my soundbar?

Sonos lists Sub Mini as compatible with Arc-family products, Beam generations, Ray, Playbar, and Playbase, as well as other supported Sonos products. Sonos says Sub 4 is compatible with all Sonos home theater speakers except Playbar and Playbase. See Sonos’s Sub setup compatibility guidance and verify your exact model before buying, since compatibility lists can change.

Sonos home theater product Sub Mini Sub 4
Arc family Compatible, per Sonos support Compatible, per Sonos support
Beam generations Compatible, per Sonos support Compatible, per Sonos support
Ray Compatible, per Sonos support Compatible, per Sonos support
Playbar Compatible, per Sonos support Not compatible, per Sonos support
Playbase Compatible, per Sonos support Not compatible, per Sonos support

For other Sonos products, confirm support for the precise model in Sonos’s current setup documentation rather than assuming compatibility from this table.

What is the difference between Sub Mini and Sub 4?

Both product pages list frequency response as low as 25 Hz. That shared manufacturer specification does not establish that either model sounds better in every room. Their documented cabinet, driver, size, and weight differences are useful for comparing the hardware and where it may fit.

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#1 Best Overall
Sale
Sonos Sub 4 - Wireless Subwoofer - Black
  • 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
Specification Sub Mini Sub 4
Dimensions 12.01 × 9.06 × 9.06 in 15.31 × 15.83 × 6.22 in
Weight 14 lb 25.99 lb
Woofers Dual 6-inch woofers Dual 5 × 8-inch elliptical woofers
Cabinet Sealed Ported
Frequency response As low as 25 Hz As low as 25 Hz
US displayed price $499 on Sonos’s US product page when accessed in 2026 $899 on Sonos’s US product page when accessed in 2026

Dimensions, weight, drivers, cabinet type, and frequency response are manufacturer specifications from the Sub Mini product page and Sub 4 product page. Prices are US-only displayed prices recorded in 2026, not guaranteed current or applicable in other countries; check Sonos’s local store before purchase.

How should you choose between them?

  • Rule out incompatible models first. If you have Playbar or Playbase, Sub 4 is not an option under Sonos’s compatibility guidance; Sub Mini is listed as compatible.
  • Compare physical fit. Sub Mini is smaller and lighter, while Sub 4 has a different, wider-and-flatter dimension profile. Measure the intended location and check the path for carrying the heavier unit.
  • Consider the documented hardware, not a promised room match. Sonos lists both at frequency response as low as 25 Hz, with different drivers and cabinet designs. The cited official pages do not specify room-size thresholds or provide independent comparative listening results, so they do not support a claim that one is best for a particular room size or universally sounds better.
  • Check local price and system details. Prices vary by region and change over time. Confirm current compatibility and any app or system requirements on Sonos support before ordering.

How does setup and placement work?

Sonos directs users to set up the home theater speaker before adding a Sub when configuring both together. Add the Sub in the Sonos app; it connects wirelessly to the primary Sonos product and should be assigned to the same room. Follow Sonos’s Sub setup instructions for the current app flow.

Rank #2
Sale
Sonos Sub Mini - Black - Compact Wireless Subwoofer
  • 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.

Keep the opening or slot unobstructed. For Sub, Sonos advises leaving at least one side of the slot clear; if the unit is laid horizontally, do not put objects on top. Sub Mini’s setup guidance also says not to block its opening. See Sonos’s placement guidance.

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Can I use a third-party subwoofer with Sonos Amp?

Amp and Connect:Amp have a limited exception: they can use a third-party active subwoofer connected through RCA. Sonos does not support third-party passive subwoofers with either product, and the subwoofer output is disabled when Amp or Connect:Amp is configured with TV surround speakers. Consult Sonos’s third-party subwoofer guidance before connecting one.

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Quick Recap

SaleBestseller No. 1
Sonos Sub 4 - Wireless Subwoofer - Black
Sonos Sub 4 - Wireless Subwoofer - Black
Dual Sonos-engineered drivers generate deep, dynamic bass; Ported enclosure enhances the bass response and low-frequency output
$749.00
SaleBestseller No. 2
Sonos Sub Mini - Black - Compact Wireless Subwoofer
Sonos Sub Mini - Black - Compact Wireless Subwoofer
Both woofers face inward to create a force-canceling effect that neutralizes distortion.
$399.00
SaleBestseller No. 3
Sonos Sub Mini - White - Compact Wireless Subwoofer
Sonos Sub Mini - White - Compact Wireless Subwoofer
Both woofers face inward to create a force-canceling effect that neutralizes distortion.
$399.00
SaleBestseller No. 4
Sonos Sub 4 - Wireless Subwoofer - White
Sonos Sub 4 - Wireless Subwoofer - White
Dual Sonos-engineered drivers generate deep, dynamic bass; Ported enclosure enhances the bass response and low-frequency output
$749.00
Best Value
Sale
Edifier T5s Powered Subwoofer, 70W RMS, 8" Woofer, 35Hz Deep Bass, Black
  • [ Deep & Powerful 8-Inch Bass ]: Experience 35Hz deep bass with the T5s powered subwoofer, which features an 8-inch long-throw woofer and a powerful 70W RMS output (driven by Class-D amplifier). Perfect for home audio and home theater.
  • [ Precision Control, Seamless Integration ]: Adjust the low-pass filter (30Hz–160Hz) and phase selector (0°/180°) to match any home stereo or active speaker setup.
  • [ Slim Design, Low Distortion ]: This space-saving compact subwoofer fits into any spaces. The 18mm MDF cabinet with a front-firing driver and right-firing acoustic port minimizes resonance for clean, tight bass. Its wood grain finish and low-profile grille blend seamlessly with home decor.
  • [ Smart & Energy-Efficient ]: Auto-standby saves power after 15 minutes of inactivity. The built-in amplifier ensures plug-and-play operation – no external receiver needed! Includes 3.5mm-to-RCA and RCA cables for instant setup.
  • [ Two Connections ]: ① Sub out-equipped speakers/amps: RCA to T5s’ Signal In; main speaker connects directly to audio source. ② No sub out: Connect T5s in series (audio source → T5s’ Signal In → T5s’ Signal Out → main speaker). Note: For ②, main speaker requires LINE IN (Bluetooth/USB/optical/non-wired not supported).
Rank #4
Sale
Sonos Sub 4 - Wireless Subwoofer - White
  • 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
Rank #3
Sale
Sonos Sub Mini - White - Compact Wireless Subwoofer
  • 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.

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.