For $70, you're getting Dolby Atmos and DTS:X support, which is not something you'd normally expect at this price point. The S45H goes further with spatial audio processing that simulates height and surround effects without requiring additional speakers, which makes a noticeable difference when watching movies or playing games.
The built-in AI Sonic room calibration is another feature you wouldn't expect here. It analyzes your room layout and listening position through the TCL app and adjusts the audio output accordingly. To be fair, your milage may vary with this feature, simply because AI isn't always reliable (and because actual room callibration usually requires dedicated microphones and sophisticated algorithms), but it could be a fun thing to try.
Output is 100W, and connectivity covers HDMI eARC/ARC, optical, Bluetooth, and AUX, so it works with virtually any TV or projector setup. Control is handled through a full-function remote, but you can also use the TCL app, if you don't want to deal with an additional remote.
What's worth noting is that this is a 2.0 configuration with no dedicated subwoofer, so deep bass performance has its limits. But for a single-bar solution at $69.99, the feature set is hard to match.
