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Sonos Sub 4 Wireless Subwoofer Review: Specs, Pros and Cons

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This sonos sub 4 review covers the latest wireless subwoofer from Sonos. It is designed to add deep, dynamic bass to your home audio setup. The device uses a ported enclosure to enhance low-frequency output. It also features a force-canceling acoustic architecture to reduce distortion. You connect it via WiFi for flexible placement. The unit comes in white or black and weighs 26.5 pounds. Its dimensions are 15.8 inches in height and 15.3 inches in width. This model aims to transform your home theater experience when paired with compatible Sonos soundbars.

What stands out

  • Ported enclosure enhances bass response and low-frequency output
  • Force-canceling architecture virtually eliminates distortion and rattle
  • WiFi connectivity allows for flexible placement options
  • Dual Sonos-engineered drivers generate deep, dynamic bass

Who it fits

Good fit for

You should consider this subwoofer if you own a Sonos Arc Ultra, Arc, or Beam soundbar. The WiFi connection lets you place it anywhere without running long cables. The ported design and dual drivers provide the deep bass needed for movies and music. Its compact footprint allows you to stand it upright or lay it on its side. This makes it easy to hide under a sofa or in a corner. The plug-and-play setup via the Sonos app simplifies installation for most users.

Who should skip it

You might want to look at another option if you need a wired connection. This model relies solely on WiFi, which may not suit all network environments. It also lacks a remote control, requiring you to use the Sonos app for adjustments. If you prefer a subwoofer with a built-in amplifier that connects via HDMI or optical inputs, this wireless unit is not the right fit. Additionally, if you need a subwoofer that does not require a power outlet nearby, the single power cable requirement limits your placement flexibility.

Verdict: The Sonos Sub 4 delivers powerful, distortion-free bass through its ported design and force-canceling architecture. It is an ideal companion for Sonos soundbar owners seeking seamless wireless integration.

Key specs for Sonos Sub 4

Connectivity: WiFi

This subwoofer connects to your sound system via a wireless network rather than physical cables. You can place it anywhere in your room that has a strong signal, which allows for flexible positioning behind furniture or in corners. This setup simplifies installation since you only need to plug it into power and use the app to configure the connection.

Enclosure Type: Ported

The device uses a ported enclosure design, which includes a tuned opening to enhance bass response and low-frequency output. This construction method typically allows for deeper bass extension compared to sealed designs. You will notice improved efficiency in moving air, making it suitable for home theater setups where you want to feel the impact of explosions and deep musical notes.

Color: White

The unit is finished in white, providing an updated matte look that matches other white Sonos devices. This aesthetic choice helps the subwoofer blend into light-colored living rooms or media centers without drawing attention. You can choose this option if your existing speaker system is white, ensuring a cohesive visual appearance throughout your home audio setup.

Weight: 26.5 pounds

Weighing 26.5 pounds, this subwoofer is a substantial piece of equipment that requires a sturdy surface. The heavy build helps stabilize the drivers during high-output sessions, reducing unwanted movement. You should ensure your floor or stand can support this weight comfortably, especially if you plan to place it in a high-traffic area where it might be bumped.

Dimensions: 15.3 inches wide

With a width of 15.3 inches, the unit has a significant footprint that you must account for in your room layout. This size allows for the internal components needed for deep bass but requires adequate clearance around the device. You need to measure your intended space carefully to ensure it fits alongside your furniture without obstructing walkways or other audio equipment.

Design and Build Quality

According to the listing, the Sonos Sub 4 features an iconic sculptural design with an updated matte finish. This aesthetic choice helps the unit blend into your living space while matching the look of your existing Sonos system. The device is available in white or black, allowing you to select the color that best complements your decor. The matte surface suggests a non-reflective texture that resists fingerprints, keeping the exterior clean with minimal effort.

In terms of physical dimensions, the subwoofer measures 15.3 inches in width, 15.8 inches in height, and 6.22 inches in length. It weighs 26.5 pounds, making it a substantial piece of equipment that requires a sturdy surface. Despite its weight, the compact footprint allows for flexible placement. You can stand it upright or lay it on its side to hide it under a sofa, maximizing your room layout options without sacrificing floor space.

The build supports reliable connectivity over WiFi, which eliminates the need for long audio cables. This wireless setup simplifies installation, as you only need a single power cable. The ported enclosure is integrated into the design to enhance bass response. This structural choice means the internal components are optimized for low-frequency output, ensuring the physical size delivers deep, dynamic bass without requiring additional external ports or complex mounting solutions.

Setup and Everyday Use Guide

Setting up the Sonos Sub 4 is designed to be straightforward. You only need a single power cable and the Sonos app to get started. This plug-and-play approach means you do not need to manage complex wiring or additional remotes. Once powered, the subwoofer connects reliably to your existing Sonos soundbar or speaker over WiFi. This wireless link allows you to place the unit flexibly within your home theater setup.

The device pairs well with Sonos Arc Ultra, Arc, or Beam soundbars. This compatibility ensures you can transform your home theater experience by adding deep, dynamic bass to your existing audio configuration. The force-canceling acoustic architecture works in the background to virtually eliminate distortion, buzz, and rattle during daily use. This means you hear clean, accurate low-frequency output without unwanted noise interfering with your content.

For everyday placement, the unit offers versatility. You can stand it upright or lay it on its side. This flexibility allows you to hide it under your sofa or position it discreetly in a corner. The iconic sculptural design and updated matte finish help it match your Sonos system visually. Whether you choose the white or black finish, the device blends into your living space while delivering powerful bass performance through its dual Sonos-engineered drivers and ported enclosure.

Before you buy Sonos Sub 4

You need a compatible Sonos soundbar or speaker to use this subwoofer. It pairs best with the Sonos Arc Ultra, Arc, or Beam models. Ensure your home theater setup includes one of these devices first. The unit connects via WiFi, so you must have a strong signal where you plan to place it. This allows flexible positioning, but weak signals may cause audio dropouts. You should also check your available space. The dimensions are 15.3 by 15.8 by 6.22 inches. It weighs 26.5 pounds, so it is sturdy but heavy. You can stand it upright or lay it on its side. The matte finish matches other Sonos products, so keep your system cohesive. Upkeep is minimal. Just dust it occasionally with a dry cloth. Avoid harsh cleaners. This subwoofer fits well if you already own Sonos gear. It adds deep bass without cluttering your room. If you use a different brand, check compatibility carefully. The ported enclosure enhances low-frequency output, but it requires proper placement to avoid rattling. Force-canceling architecture helps reduce distortion, ensuring clean sound. This model suits those who want seamless integration with existing Sonos ecosystems.

Check before you buy

  • Verify you own a compatible Sonos soundbar like Arc or Beam.
  • Check WiFi signal strength at your intended subwoofer location.
  • Measure your space against the 15.8-inch height and 26.5-pound weight.
  • Ensure you have the Sonos app installed on your device.

The product at a glance

Sonos Sub 4 Wireless Subwoofer

Best for: Sonos soundbar home theater setups

Enclosure Type
Ported
Connectivity
WiFi
Application
Soundbars
Dimensions
6.22 × 15.3 × 15.8 inches
Weight
26.5 pounds

View on Amazon: Sonos Sub 4 Wireless Subwoofer Affiliate link

The Sonos Sub 4 is a wireless subwoofer featuring a ported enclosure and dual drivers for deep bass. It uses force-canceling architecture to reduce distortion. The unit connects via WiFi and measures 15.3 by 15.8 by 6.22 inches. It weighs 26.5 pounds and fits in white or black. This model suits those wanting flexible placement and clean integration with Sonos soundbars.

Pros

  • Dual Sonos-engineered drivers for dynamic bass
  • Ported enclosure enhances low-frequency output
  • Force-canceling architecture eliminates distortion and rattle
  • WiFi connectivity allows flexible placement

Cons

  • Limited to WiFi connection without Bluetooth
  • No physical remote included in data
  • Requires Sonos app for setup and control

Good fit if

  • You own a Sonos soundbar like Arc or Beam
  • You want to hide the sub under a sofa
  • You prefer wireless connectivity over cables

Skip if

  • You need Bluetooth connectivity
  • You want a compact sub under 10 inches
  • You prefer wired speaker connections

Verdict: Sonos Sub 4 Wireless Subwoofer fits users with Sonos soundbars who need deep bass without clutter. Its ported design and force-canceling tech deliver clean low-end for home theater setups.

Specifications side by side

Spec Sonos Sub 4 Wireless Subwoofer
Enclosure Type Ported
Connectivity WiFi
Application Soundbars
Dimensions 6.22 × 15.3 × 15.8 inches
Weight 26.5 pounds
Color White
Model SUBG4US1

Frequently asked questions

What are the exact dimensions of the Sonos Sub 4?

The Sonos Sub 4 measures 15.8 inches in height, 15.3 inches in width, and 6.22 inches in length. These compact proportions allow it to fit behind furniture or in corners without dominating your room. The design prioritizes space efficiency while maintaining its sculptural aesthetic.

How heavy is the Sonos Sub 4?

The unit weighs 26.5 pounds. This substantial weight helps stabilize the internal components and reduces unwanted vibration during high-output playback. You should place it on a sturdy, flat surface to ensure optimal performance and safety during use.

What color options are available for this model?

The Sonos Sub 4 is available in white. This color choice helps the device blend seamlessly into most interior decors. It matches the finish of other Sonos components, ensuring a cohesive look for your home theater or music setup.

What is the specific model number for the US version?

The model number for the US version is SUBG4US1. You can verify this identifier on the product packaging or in the Sonos app. Using the correct model ensures compatibility with your regional network settings and software updates.

Does the Sonos Sub 4 require physical cables for audio?

No, it uses a wireless connection. You only need to plug in a single power cable. The audio signal transmits wirelessly to your compatible Sonos soundbar or speaker, eliminating the need for long, unsightly audio cables running across your room.

Is this subwoofer suitable for Sonos Arc Ultra setups?

Yes, it is designed to fit users with Sonos soundbars like the Arc Ultra. The wireless connectivity and force-canceling technology deliver clean low-end bass that complements these soundbars. It enhances home theater immersion without adding clutter to your viewing area.

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