LG S20A 2.0 ch. Soundbar vs TCL S45H 2.0 Sound Bar for
Updated April 2026 — LG S20A 2.0 ch. Soundbar wins on compatibility and connectivity, TCL S45H 2.0 Sound Bar for wins on value and power output.
$79.99TCL S45H 2.0 Sound Bar for Smart TV | Dolby Atmos DTS:X Auto Room Calibration| 100W Power Wireless Bluetooth Home Theater Audio | App & Remote Control | Latest Model
TCL
Product B offers better value with a lower price of $79.99 compared to Product A at $116.99, alongside a confirmed 100 W power output. Product A provides specialized LG TV integration features like WOW Interface, but lacks specific power metrics. For most users seeking performance per dollar, Product B is the stronger choice.
Why LG S20A 2.0 ch. Soundbar is better
Unified Control System
Uses 1 remote for TV and soundbar via WOW Interface
Ecosystem Harmony
Designed for 1 specific brand ecosystem (LG TV)
Premium Pricing Tier
Listed at $116.99 indicating higher market positioning
Why TCL S45H 2.0 Sound Bar for is better
Higher Power Output
Delivers up to 100 W total output
Lower Cost
Priced at $79.99, saving $37.00
Automated Calibration
Includes 1-time setup via AI Sonic technology
Overall score
Specifications
| Spec | LG S20A 2.0 ch. Soundbar | TCL S45H 2.0 Sound Bar for |
|---|---|---|
| Model Title | TCL S45H 2.0 Sound Bar for | LG S20A 2.0 ch. Soundbar |
| Brand | LG | TCL |
| Price | $116.99 | $79.99 |
| Channel Configuration | 2.0 | 2.0 |
| Power Output | null | Up to 100 W |
| Audio Technology | Dolby Audio | Dolby Atmos & DTS Virtual:X |
| Control Method | 1 Remote (WOW Interface) | TCL App |
| Calibration | null | AI Sonic Auto Room Calibration |
Dimension comparison
Design and build quality
Both units present themselves as compact 2.0 channel soundbars designed to fit unobtrusively below a television. Product A emphasizes a small form factor that is big on bass, utilizing a passive radiator to enhance low-frequency response without requiring a separate subwoofer. Product B describes a slim soundbar design intended to deliver cinematic sound from a minimal footprint. While specific dimensions are not provided in the data for either unit, both prioritize space efficiency suitable for apartments, bedrooms, or small to medium rooms. The build philosophy for both focuses on integrating audio enhancement into a streamlined chassis that does not dominate the entertainment setup.
Audio Performance and Power
When evaluating raw audio capability, Product B provides a concrete specification with up to 100 W total output. This metric suggests a capacity for room-filling performance that aims to punch above typical 2.0 soundbars for louder, more dynamic playback without distortion. Product A mentions enhanced bass through a passive radiator and Dolby Audio processing but does not list a specific wattage figure. Product B further distinguishes itself with Dolby Atmos and DTS Virtual:X support, promising rich spatial audio that simulates height and surround effects. Product A relies on Dolby Audio to ensure details are not missed during entertainment consumption.
Connectivity and Compatibility
Product A features specialized connectivity designed for LG TV owners. The WOW Interface and WOW Orchestra technologies allow the soundbar and TV speakers to operate simultaneously, creating a harmony between the devices. This requires compatibility within a single brand ecosystem. Product B offers connectivity managed through the TCL app, which facilitates the AI Sonic Auto Room Calibration. While Product A offers deep integration for specific users, Product B aims for a broader setup process via a mobile application. Both units function as 2.0 channel systems, indicating a standard stereo configuration without dedicated surround speakers.
Smart Features and Calibration
Intelligent audio processing is a key differentiator in this comparison. Product B includes AI Sonic Auto Room Calibration, which adjusts audio to the unique layout and listening position of the user. This feature is activated through a simple one-time setup via the TCL app, ensuring balanced sound tailored to the environment. Product A utilizes AI Sound Pro, though specific calibration details are not enumerated in the provided data. The presence of automated room correction in Product B provides a tangible advantage for users seeking optimized audio without manual equalizer adjustments.
Remote Control and Interface
Control convenience varies significantly between the two models. Product A highlights the WOW Interface, which enables users to control the soundbar and LG TV with one remote. This allows for volume adjustment, audio settings, connection status checks, and sound mode selection directly from the TV remote. This reduces clutter and simplifies the user experience by consolidating control into a single device. Product B relies on the TCL app for certain configurations, such as calibration, though standard remote functionality is implied for daily use. The ability to use 1 remote interchangeably gives Product A an edge in daily operational simplicity for compatible setups.
Brand Ecosystem Integration
Product A is deeply integrated into the LG ecosystem. The features described, such as WOW Orchestra, are specific to LG TV and soundbar combinations. This ensures a seamless experience for users who already own an LG television, allowing them to feel every detail of sound through combined speaker output. Product B is branded under TCL, a global leader in TVs and audio, but the features described focus more on standalone performance and app-based configuration rather than specific TV speaker integration. For users outside the LG ecosystem, Product A's specialized features may not be fully utilized, whereas Product B's features are generally applicable regardless of the TV brand.
Price and Value
Price is a major deciding factor in this comparison. Product A is listed at $116.99, positioning it in a higher price tier compared to Product B, which is priced at $79.99. This represents a difference of $37.00 in favor of Product B. Given that Product B also provides a confirmed 100 W power output and advanced audio formats like Dolby Atmos, it offers a stronger performance-to-cost ratio. Product A's higher price point may be justified for users who specifically require the LG WOW Interface integration, but for general consumers, Product B delivers confirmed specifications at a lower cost.
Which one should you buy?
The choice depends largely on your existing television brand and budget. If you own an LG TV and value the convenience of controlling both devices with 1 remote while utilizing combined speaker output, Product A is the logical choice despite the higher price of $116.99. However, for most users seeking the best audio performance per dollar, Product B is the superior option. It offers a confirmed 100 W output, Dolby Atmos support, and AI calibration at a price of $79.99. Unless specific LG ecosystem features are required, Product B provides better verified specifications and value.
