When it comes to elevating your audio experience, Sonos never disappoints. The Sonos Sub Gen 3 is the latest addition to their stellar lineup, and it’s here to redefine your relationship with sound.

Say goodbye to the days of distorted bass and hello to a world of immersive, crystal-clear audio. In this review, we’ll take a deep look at the features and benefits of the Sonos Sub Gen 3, as well as the pros and cons, to help you make an informed decision about this wireless subwoofer.

sonos sub gen 3 placed in a living room  

Product Specifications

  • Product Dimensions: 15.3 x 15.8 x 6.2 inches
  • Item Weight: 15.45 lbs
  • Color: Black/White
  • Connectivity Technology: Wi-Fi
  • Batteries: 1 Lithium Ion batteries required
  • Speakers Maximum Output Power: 245 Watts
  • Compatible Devices: Television

Features & Benefits

1. Distortion-Free Bass

The standout feature of the Sonos Sub Gen 3 is its ability to deliver deep bass without any distortion. Thanks to two force-canceling drivers at its core, vibrations and rattles are eliminated, ensuring that you get a powerful and clean bass experience.

Whether you’re watching an action-packed movie or grooving to your favorite tunes, you’ll be able to hear and feel the difference.

2. Sleek and Versatile Design

Sonos has always been known for its commitment to aesthetics, and the Sub Gen 3 is no exception. This award-winning subwoofer boasts a slim, sculptural design with a high-gloss finish.

You can position it upright or lay it on its side to seamlessly blend with your room’s decor. It’s not just an audio powerhouse; it’s a visual masterpiece.

3. Enhanced Sound Quality

The Sub Gen 3 doesn’t just stop at delivering deep bass. It takes over the lowest frequencies, improving the midrange playback of your paired speakers.

The result is a fuller, more detailed sound that truly elevates your audio experience. You’ll hear nuances in your music and dialogue in movies that you never knew existed.

a couple enjoying the sound of the sonos subwoofers gen 3

4. Immersive Entertainment

Looking to take your home theater experience to the next level? Connect the Sub to your Sonos Arc or Beam soundbar and prepare to be blown away. Your TV shows, movies, and video games will come to life with added depth and intensity.

For the ultimate surround sound experience, consider adding a pair of One SL speakers as surround speakers: the immersion is unparalleled.

5. Automatic Updates

The Sub (Gen 3) is designed to stay relevant and up-to-date. Enhanced storage and processing power allow it to receive automatic updates, integrating new features, enhancing security, and more.

You won’t have to worry about your audio equipment becoming outdated.

6. Seamless Integration

With Wi-Fi connectivity, the Sub can seamlessly stream audio via your Wi-Fi network.

Even better, it can wirelessly connect to other Sonos speakers, allowing you to expand your sound system throughout your home. It’s the epitome of hassle-free and versatile audio integration.

7. Trueplay Tuning Technology

One size doesn’t fit all when it comes to audio, and Sonos understands that. The Trueplay tuning technology optimizes the sound for the unique acoustics of your room.

This means you get a tailor-made audio experience that’s perfect for your living space.

8. Easy Setup

Don’t fret about complicated installations. Setting up the Sub Gen 3 is a breeze. From unboxing to listening, it only takes minutes.

Plug in the power cable, open the Sonos app, and you’re good to go. It’s user-friendly and designed to get you to the listening part as quickly as possible.

9. Satisfaction Guaranteed

Sonos stands behind its products, and the Sub Gen 3 is no exception. You can enjoy peace of mind with their 30-day refund or replacement policy.

If, for any reason, you’re not completely satisfied with your purchase, Sonos has got you covered.

What Customers Say

User R.A. from the U.S. found the sound quality impressive. It’s worth noting that this product requires another Sonos device for pairing, as R.A. attempted to use it with a Sonos Port connected to in-wall speakers and a receiver/amp setup without success. However, it worked well for outdoor use on their covered patio.

Abigail, also from the U.S., initially had the Sonos Sub on her wishlist. After purchasing it, she was pleasantly surprised by the significant improvement in sound quality, especially in the bass department.

Abigail did encounter a slight setup issue with her Samsung Frame TV as the controller but received excellent guidance from Sonos support.

Jose, another U.S. user, recognized the familiar deep bass and elegant design of the Sonos Sub Gen 3, consistent with previous generations.

Notable improvements in the Gen 3 include an upgraded WiFi card, BLE, and enhanced processing power. While Jose wished for a matte finish, he still found the glossy design beautiful.


  • Distortion-free bass for a powerful audio experience
  • Stylish and versatile design that complements any room
  • Enhanced sound quality with fuller, more detailed sound
  • Immersive home theater experience when paired with Arc or Beam
  • Automatic updates for lasting relevance


  • Higher price point for quality
  • Consideration needed for its size in your space

FAQs (Frequently Asked Questions) about Sonos Sub Gen 3

How does Generation 3 subwoofer differ from Generation 2?

In terms of acoustic performance, there’s no distinction between the Gen 2 and Gen 3 subwoofers. However, the Gen 3 Sub features enhanced internal processing and memory capacity, enabling it to fully leverage any new features introduced to the Sonos platform.

Do I need to plug the wireless subwoofers into an electrical outlet?

Yes. Wireless subwoofers connect to other speakers in the system via Wi-Fi but still need to be plugged into an electrical outlet.

Do I need to set up the Sub at the same time as the soundbar or speakers?

No. The Sonos System is designed to be modular, so you can add the Sub at any time.

Can I use the Sub with wired or passive speakers?

By powering the speakers with an Amp, you can add the Sub and integrate it into the Sonos System.

Is a subwoofer necessary to achieve a 5.1 surround audio system?

Yes, the subwoofer is the “.1” component of the 5.1 system and is responsible for handling low-frequency audio.

Does placing the Sub on its side affect audio quality?

Low frequencies are omnidirectional, so the direction or orientation of the Sub does not significantly alter the sound. However, positioning the Sub in extremely tight spaces may affect sound dispersion and, consequently, the listening experience.

If I have Sonos speakers in different rooms, can I improve the bass throughout the whole system by placing the Sub in the center of the house?

The Sub pairs with speakers in a single room. Walls naturally create a barrier against sound dispersion, so pairing the Sub with speakers in other rooms will result in unbalanced audio, with low frequencies playing in one part of the house and high frequencies in another.


Final Verdict

In the realm of audio equipment, the Sonos Sub Gen 3 is a standout performer. It’s not just a subwoofer; it’s a gateway to a world of exceptional sound quality and immersive entertainment.

With its ability to deliver distortion-free bass, sleek design, enhanced sound quality, and seamless integration with the rest of your Sonos system, it’s hard to find fault with this impressive device.

While the price may be a consideration for some, the investment in the Sonos Sub Gen 3 is well worth it for those who appreciate high-quality audio and innovative technology.

In summary, if you want to elevate your audio experience, we trust the Sonos Sub Gen 3 is a must-have addition to your entertainment setup.

It combines form and function, ensuring that you not only hear but also feel every note and beat. It’s a piece of audio excellence that will transform the way you enjoy your favorite music, movies, and games.


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Alex holds a Bachelor of Science (BS) in Marketing degree and is a teacher of Italian language for foreign students. He's also a writer, blogger and content marketer. Through SavvyBuyerHub, he provides valuable tips and reviews to help online shoppers choosing the best products and gifts.

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