The Samsung LSP9T and Samsung LSP7T are both 4K QLED TVs from Samsung and both offer exceptional picture quality and features. However, the LSP9T has some extra features that makes it the better choice for high-end consumers.
The LSP7T has a 4K resolution with 60 Hz panel, HDR 10+, Free Sync, and HDR 10+ Direct. The picture quality it offers is excellent, and you can expect vibrant colours, as well as deep black levels and great viewing angles.
The LSP9T also offers a 4K QLED display but with 120 Hz panel with HDR 10+ and Direct. This means it can display smoother motion and better gaming support due to the higher refresh rate. Furthermore, it also supports superior HDR formats such as HDR 10+ and HLG.
The LSP9T has a more powerful full array local dimming which results in improved contrast and deeper blacks. The backlighting is very precise which, combined with the 120 Hz panel, creates great local dimming and overall greyscale performance. In addition, it also supports Adaptive Enhance, which can further improve the on-screen visuals.
In terms of audio, both TVs have built-in speakers with Dolby Digital Plus. However, the LSP9T has a bigger sound system and Dolby Digital Plus with Object Tracking Sound (which uses directional audio to create a more immersive experience).
In conclusion, the Samsung LSP9T is the better choice for high-end consumers thanks to its powerful display and enhanced audio features. It offers better picture quality, smoother motion, improved contrast, and more immersive audio. It's a great choice for those who want the best performance from their TV.