LG S40TR
Score: 87/100
Sonos Arc Ultra
Score: 85/100Rankings
The LG S40TR is a 4.1-channel soundbar system with a powerful wireless subwoofer, Dolby Atmos, AI-driven sound modes and seamless integration with LG TVs via the WOW Interface.
The Sonos Arc Ultra soundbar paired with the Sub 4 delivers a premium 9.1.4 Dolby Atmos experience with rich, detailed sound and deep bass, while integrating tightly with the Sonos ecosystem via Wi-Fi 6, Bluetooth 5.3, and eARC. Its sleek design and advanced calibration make it ideal for large-screen home theaters, though the lack of HDMI inputs and the heavy subwoofer are notable drawbacks.
| Attribute | | |
|---|---|---|
400 Wbest | — | |
1best | — | |
— | 1best | |
5.3best | 5.3best | |
| ↓ lower better | 10.024 kgbest | 17.9 kg |
12 monthsbest | — | |
| ↓ lower better | 0.5 Wbest | — |
200 Wbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity(1) | ||
Wi‑Fi Support | false | true |
Build & Design(1) | ||
Overall Weight (kg) | 10.0235 kg | 17.9 kg |
Audio(2) | ||
Channel Configuration | 4.1 | 9.1.4 |
Supported Audio Formats | Dolby Digital, DTS Digital Surround, LPCM, Dolby Atmos | Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Multichannel PCM, Stereo PCM, DTS Digital Surround |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the S40TR for its powerful, cinematic soundstage, robust Dolby and DTS decoding, and premium build, while noting the lack of Wi-Fi and voice-assistant features as a shortfall for a 2024-era sound system.
Everyday users praise the immersive surround experience, deep bass and dialogue clarity, but report Bluetooth lag, a dated ThinQ app and the need to power rear speakers with AC cords.
Professional reviewers praise the Arc Ultra for its clean, precise, three-dimensional soundstage, deep expressive bass, and effective Trueplay calibration, but criticize the lack of HDMI inputs and native DTS support, noting that height effects may be underwhelming without ideal room conditions.
Everyday users love the crystal-clear dialogue, powerful bass, and sleek look, while frustrations focus on missing HDMI inputs, occasional app freezes, subtle Atmos immersion, and the Sub 4's heft.
“Rich, detailed sound with deep, tuneful bass”
“Trueplay makes the room sound perfect, even on Android”
“Bluetooth 5.3 streaming works flawlessly”
