A 55-inch TV strikes the perfect balance between screen size and room flexibility — and pairing it with the right soundbar can elevate your home entertainment experience dramatically. Whether you’re after immersive Dolby Atmos, room-filling audio, or compact smart soundbars with Alexa, this guide highlights the best soundbars for 55-inch TVs in 2025.
How to Match a Soundbar with a 55" TV
TV width: ~48.5 inches (diagonally measured)
Ideal soundbar width: 32–45 inches
Ensure the soundbar doesn’t overhang or appear too small visually
Match the soundbar power output and features to your room size and needs
Sonos Beam Gen 2
Width: 25.6 inches (ideal for smaller rooms)
Dolby Atmos (virtual)
Built-in Alexa, Google Assistant, AirPlay 2
HDMI eARC, Wi-Fi, no Bluetooth
Seamless integration with Sonos ecosystem
✅ Best for: Compact setups, voice control, and multiroom expansion
Bose Smart Soundbar 600
Width: 27.3 inches
Real upfiring Dolby Atmos drivers
HDMI eARC, Bluetooth, Wi-Fi
Alexa, Google Assistant, AirPlay 2
✅ Best for: Immersive audio in medium-sized rooms
Samsung HW-S800B Ultra Slim Soundbar
Width: 45 inches – nearly matches 55″ TV
Dolby Atmos, DTS:X, Q-Symphony support
Includes wireless subwoofer
Alexa built-in, SmartThings app
✅ Best for: Style-conscious users wanting immersive sound without bulk
Soundbar Features to Look for with 55-Inch TVs
| Feature | Why It Matters |
| HDMI eARC | Enables Dolby Atmos pass-through |
| Upfiring speakers | Real height effects for Atmos |
| Voice assistant | Alexa or Google for hands-free use |
| Subwoofer pairing | Enhances bass depth and clarity |
| Multiroom support | Expand with wireless rear speakers |
Comparison Table
| Model | Width | Dolby Atmos | Alexa | Subwoofer | MSRP |
| Sonos Beam Gen 2 | 25.6 in | Virtual | ✅ | No | $499 |
| Bose Soundbar 600 | 27.3 in | Real Upfiring | ✅ | No | $499 |
| Samsung HW-S800B | 45 in | Real Upfiring | ✅ | Yes | ~$699 |
Final Recommendation
Small to mid-sized room: Sonos Beam Gen 2
More immersive Atmos with Bluetooth: Bose Soundbar 600
Full cinematic experience with slim profile: Samsung HW-S800B
When choosing a soundbar for your 55″ TV, aim for acoustic performance and design alignment. A great fit not only sounds better — it also enhances your home theater’s visual appeal.