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No—not just any subwoofer. Bose documents three compatible bass modules for the Smart Soundbar 300: the Bass Module 500, Bass Module 700, and Acoustimass 300. Bose does not establish that a third-party or arbitrary subwoofer will work with this soundbar.
Which subwoofers are compatible with the Bose Smart Soundbar 300?
The Bose Smart Soundbar 300 Owner’s Guide says, “You can connect any of these accessories to the soundbar,” and names the Bass Module 700, Bass Module 500, and Acoustimass 300 bass module. Bose’s product pages also list the Soundbar 300 as compatible with the Bass Module 500 and Bass Module 700.
| Module | What Bose documents | What to consider |
|---|---|---|
| Bose Bass Module 500 | Listed as compatible in the Soundbar 300 Owner’s Guide and Bose’s product guidance. | A supported option. Follow the connection method in the applicable guide. |
| Bose Bass Module 700 | Listed as compatible in the Soundbar 300 Owner’s Guide and Bose’s product guidance. | Another supported option. The cited compatibility information does not establish a sound-quality ranking against the 500. |
| Bose Acoustimass 300 | Listed as a compatible accessory in the Soundbar 300 Owner’s Guide. | Relevant if you already own one or are considering used equipment; verify the exact model and its instructions. |
These sources establish compatibility, not a head-to-head performance comparison. Choose based on availability, physical fit, and whether you want a documented Bose-compatible module—not an assumed difference in bass quality.
Can you connect a third-party subwoofer?
Bose’s published compatibility information for the Soundbar 300 names specific Bose modules; it does not say that any subwoofer will work. A cable fitting, a matching connector, or a product’s general claim of being a subwoofer does not establish compatibility. If a model is not among the documented options, confirm compatibility with Bose for that exact model before buying or attempting a connection.
#1 Best Overall
- Newly designed subwoofer that delivers a dynamic range of bass in a small, compact size that can be easily hidden
- Designed to be paired with the Bose sound bar 500, Bose sound bar 700 and Compatible with SoundTouch 300 soundbar as well
- Connects wirelessly to the Bose sound bar for easier setup and placement, so you can enjoy your entertainment in minutes
- Crafted from Premium materials and measuring only 10" x 10" x 10" for easy, inconspicuous placement
- Bose Bass Module Connection Cable for use with the Bose TV Speaker
How do you connect a supported bass module?
For the Bass Module 500
- Use the Bose app to connect the Bass Module 500 to a Bose Smart Soundbar, following the module’s Owner’s Guide.
- Do not assume that the guide’s cable instructions for the Bose TV Speaker or alternate wired soundbar setup apply to the Soundbar 300. The guide distinguishes connection methods by equipment.
- If you are considering a Bose Bass Module Connection Cable, check the instructions for your exact equipment first. Bose describes hardwiring as available for “select” soundbars, not all soundbars.
For placement, Bose advises putting the Bass Module 500 on the floor against the same wall as the television and soundbar, with a nearby power outlet. Bose says moving it closer to walls or corners increases bass, while moving it farther away reduces bass.
For the Bass Module 700 or Acoustimass 300
Use the instructions for the exact module and Soundbar 300 rather than applying the Bass Module 500 connection steps by analogy. The Soundbar 300 guide establishes these models as compatible accessories, but the cited setup instructions here describe the Bass Module 500 specifically.
Quick Recap
Rank #4
- The smallest speakers designed by Bose so the focus can remain on your home entertainment not your speakers
- Designed to bring music movies and TV to life with full immersive surround sound
- Simply plug the adapters into a power source and wirelessly connect the receivers to the Bose Soundbar and enjoy your entertainment in minutes
- Looking for more pulse-pounding impact? Add the Bose Bass Module 700 to experience the difference between hearing bass and feeling the thunder.
- Standing less than 4 inch tall Both bass modules have a wireless range of 30 feet
Rank #3
- Bose Bass Module Connection Cable for use with the Bose TV Speaker
- A 15′ (4. 6 m) cable with 3. 5 mm connectors for a wired connection from a Bose Bass Module to the Bose TV Speaker.
- Expand your system with an optional bass module for a more heart-pounding, cinema-quality experience.
- The Bose TV Speaker requires a wired connection and is compatible with the Bose Bass Module 500 or 700
- This an optional cable wire for expanding your Bose TV Speaker to connect to a Bose Bass Module
Rank #2
- Thunderous bass, wireless connectivity. This wireless, compact subwoofer is designed to be paired with the Bose Soundbar to bring music, movies, and TV to life with deep, dramatic bass
- A powerful driver and generously sized port deliver a dynamic range of rich, low notes so you can feel the full impact of pulse pounding scenes and playlists
- Rock the house without sacrificing clarity with quiet port technology that virtually eliminates distortion
- Premium glass top finish adds elegance to your home theater setup
- Pair your Bose Soundbar and Bose Bass Module 700 with Bose Surround Speakers for a powerful combination of thunderous bass and true surround sound
What should you check before buying?
- Confirm the exact module model. The documented choices are Bass Module 500, Bass Module 700, and Acoustimass 300.
- If buying a used Acoustimass 300, verify its condition and obtain the instructions for that exact unit.
- Check current availability and price with the seller; the Bose compatibility information does not establish current stock or pricing.
- Make sure the planned placement has a suitable floor location and power outlet. For the Bass Module 500, Bose recommends the same wall as the TV and soundbar.
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.
