LG S77S vs Yamaha SR-B20A
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Choosing between the LG S77S and Yamaha SR-B20A? Both compete in the Soundbar segment. Here’s how they compare across the specs that matter most for your home theater.
Looking at overall performance dimensions: The Yamaha SR-B20A leads in value, form factor, room fit. They score similarly in ease of use.
These soundbars differ in only the Yamaha SR-B20A includes Dolby Atmos support. Atmos support and included subwoofer can significantly impact the immersive experience.
The Yamaha SR-B20A holds an advantage across more performance dimensions, but the LG S77S may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | $449.00 | N/A |
| Channel Config | — | 2.0 |
| Total Power (RMS) | — | 120W |
| Driver Count | — | 6 |
| Freq Response Low | — | — |
| Freq Response High | — | — |
| Passive | — | No |
| Dolby Atmos | — | No |
| Dolby Digital+ | — | Yes |
| Dolby TrueHD | — | No |
| DTS:X | — | No |
| DTS Virtual:X | — | Yes |
| DTS-HD Master | — | No |
| Built-in Sub | — | Yes |
| Wireless Sub Included | — | No |
| Wireless Sub Support | — | No |
| Wireless Surround Support | — | No |
| HDMI eARC | — | Yes |
| HDMI Inputs | — | 0 |
| HDMI Version | — | 2.0 |
| Optical Input | — | Yes |
| Analog Stereo In | — | No |
| Sub Pre-Out | — | No |
| Ethernet | — | No |
| Bluetooth | — | Yes |
| BT Version | — | 5.0 |
| Wi-Fi | — | No |
| Wi-Fi Standard | — | — |
| AirPlay 2 | — | No |
| Chromecast | — | No |
| Spotify Connect | — | No |
| Voice Assistants | — | |
| Room Calibration | — | Clear Voice |
| Dialog Enhancement | — | Yes |
| Night Mode | — | Yes |
| App Control | — | — |
| Wall Mountable | — | Yes |
Key Differences
- Channel Config: LG S77S at — vs Yamaha SR-B20A at 2.0
- Total Power (RMS): LG S77S at — vs Yamaha SR-B20A at 120W
- Driver Count: LG S77S at — vs Yamaha SR-B20A at 6
- Passive: LG S77S at — vs Yamaha SR-B20A at No
- Dolby Atmos: LG S77S at — vs Yamaha SR-B20A at No
