I am using Mirage OMD-28 series for my home theatre and love it. My room is similar in size to yours, just 17 instead of 22, and 100" screen. Mirage are great for HT, as they are very immersive and have incredible bass. You can find them used pretty inexpensively.
In-wall are good, but be sure you can use them before buying. I made this mistake (turns out I have mortar and lath walls and can't use them), and they are impossible to sell. Just fair warning.
Mot
In-wall are good, but be sure you can use them before buying. I made this mistake (turns out I have mortar and lath walls and can't use them), and they are impossible to sell. Just fair warning.
Mot