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Deal.ai › Sonos
Sonos
Sonos Sub Gen4 Wireless Smart Subwoofer

Sonos Sub Gen4 Wireless Smart Subwoofer

Best price now

$899.00at Best BuyObserved at 10:17 AM

Compared across 14 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $899.00 at Best Buy (checked Nov 9, 2026).
  • Checked at 14 stores.
  • Our take on the Sonos Sub Gen4 Wireless Smart Subwoofer

    The Sonos Sub Gen 4 is a wireless subwoofer for Sonos soundbars and speakers. Two inward-facing 5x8-inch woofers cancel cabinet vibration, so it delivers deep bass down to about 25 Hz without rattling. It can stand upright or lie flat under furniture, and automatic room tuning adjusts output to the space. It suits movie and music listeners who want fuller low end from an Arc, Beam or Sonos speakers; it is a costly add-on and only makes sense inside the Sonos ecosystem.

    Best forSonos Arc or Beam owners wanting deeper bassMovie and TV watchingMusic listeners with Sonos speakersRooms where a flat-laid sub fits under furniture
    Pros
    • Force-cancelling drivers keep the cabinet still and reduce rattle
    • Deep output down to roughly 25 Hz
    • Automatic room tuning adapts bass to the room
    • Stands upright or lies flat under furniture
    • Wi-Fi 6 and Ethernet for a stable connection
    Cons
    • Works only with Sonos systems
    • No Bluetooth or wired audio input
    • Large and heavy at about 11.8 kg
    • Bass tuning options are limited compared with some rivals

    Sonos Sub Gen4 Wireless Smart Subwoofer prices at every store

    • Best BuyNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Best Buy
    • SonosNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Sonos
    • WalmartNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Walmart
    • Macy'sNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Macy's
    • Crate & BarrelNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Crate & Barrel
    • PC Richard & SonNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit PC Richard & Son
    • B&H Photo-Video-AudioNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit B&H Photo-Video-Audio
    • CrutchfieldNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Crutchfield
    • Bloomingdale'sNew

      In stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Bloomingdale's
    • Micro CenterNew

      In stock

      $899.99+ $19.85 shippingObserved at 10:17 AM
      Visit Micro Center
    • BrandsMart USANew

      In stock

      $899.00+ $100.00 shippingObserved at 10:17 AM
      Visit BrandsMart USA
    • Guards On Duty ShopNew

      In stockShips from South Africa · priced in ZAR (ZAR 28,984.00) · duties may applyReturn policy

      $1,762.14Verified
      Visit Guards On Duty Shop
    • Schaefer'sNew

      Availability unknown

      $899.99+ $109.00 shippingObserved at 10:17 AM
      Visit Schaefer's
    • TargetNew

      Out of stock

      $899.00Free shippingObserved at 10:17 AM
      Visit Target

    Sonos Sub Gen4 Wireless Smart Subwoofer price history

    Lowest price we've seen: $899.00 on Nov 9 at Best Buy. Tracked across 13 stores since Nov 9.

    What reviewers say

    Owners praise the Sub Gen 4 for clean, deep bass that transforms Sonos soundbars for movies and music. Many note the force-cancelling design keeps it quiet in the cabinet. Criticism centers on its size, its Sonos-only pairing and the limited tuning controls.

    What people mention
    • Bass depthPraisedOwners say it adds deep, clean low end that soundbars alone cannot reach.
    • Cabinet vibrationPraisedThe force-cancelling drivers are said to keep the cabinet still and free of rattle.
    • SetupPraisedPairing and room tuning through the Sonos app are described as quick and easy.
    • SizeCriticisedSome owners find it large and heavy, which limits where it can go.
    • Ecosystem lock-inCriticisedReviewers note it only works with Sonos speakers and soundbars.
    • Tuning controlsMixedAutomatic tuning is welcome, but some want more manual bass adjustment.

    About the Sonos Sub Gen4 Wireless Smart Subwoofer

    The latest generation wireless subwoofer, finished in black, pairing dual force-cancelling drivers with updated internal electronics for deep, distortion-free bass that connects wirelessly to a compatible soundbar or speaker system.

    • Dual 5 inch by 8 inch elliptical woofers in an inward-facing, force-cancelling arrangement to eliminate cabinet vibration

    • Ported enclosure extends bass response down to 25 Hz

    • Updated processor, added memory and Wi-Fi 6 radio for faster, more reliable wireless performance

    • Automatic room tuning calibrates bass output to the room

    • Can be positioned upright or laid flat to fit under furniture

    Specifications

    Wireless transmission
    Wi-FiSource
    Wi-Fi standard
    Wi-Fi 6 / 802.11axSource
    Ethernet
    YesSource
    Bluetooth
    NoSource
    Height

    Questions and answers

    Does the Sonos Sub Gen 4 work with any soundbar?
    No. It pairs only with Sonos soundbars and speakers, such as the Arc, Beam and Sonos One, through the Sonos app.
    Can I use two Subs together?
    Yes. Compatible Sonos systems can run two Subs for more even bass, and the app lets you adjust their levels.
    Can it be placed under a sofa?
    Yes. It can lie flat, which makes it easier to tuck under furniture, though it still needs some clearance and a power outlet.
    Does it need a wired connection?
    No. It connects over Wi-Fi, and an Ethernet port is there if you prefer a wired network link.
    How is it different from the previous Sub?
    The Gen 4 adds a faster processor, more memory and Wi-Fi 6 for more reliable wireless performance, while keeping the same dual force-cancelling driver design.
    Does it have Bluetooth?
    No. It has no Bluetooth audio input and connects only over Wi-Fi or Ethernet within a Sonos system.
    Where is the Sonos Sub Gen4 Wireless Smart Subwoofer cheapest?
    At Best Buy, for $899.00, as of our latest check.
    Where can I buy the Sonos Sub Gen4 Wireless Smart Subwoofer?
    14 stores we checked sell it, including Best Buy, Sonos, Walmart, Target, Macy's.

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    Stores we've priced the Sonos Sub Gen4 Wireless Smart Subwoofer at

    • Best Buy deals and prices
    • bhphotovideo.com deals and prices
    • Bloomingdale's deals and prices
    • BrandsMart USA deals and prices
    • crateandbarrel.com deals and prices
    • Crutchfield deals and prices
    • Macy's deals and prices
    • Micro Center deals and prices
    • PC Richard deals and prices
    • Schaefer's deals and prices
    • sonos.com deals and prices
    • Target deals and prices

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    38.9 cmSource
    Width
    40.2 cmSource
    Depth
    15.8 cmSource
    Weight
    11.79 kgSource
    Frequency response
    Up to 25 HzSource
    Woofers
    Dual 5 x 8" inward-facing woofersSource
    Colour
    BlackSource
    Wireless
    Yes
    Color
    Black, White
    Special Purpose
    Subwoofer
    Connectivity
    Bluetooth, Wi-Fi, USB, Ethernet