The THX baffle wall is one of the integral parts of the THX sound system in cinemas that creates some part of the movie magic experience it not only improves of frequency response of the loudspeaker array that is placed into the flush barrier wall but it is also covered High frequency absorbent material so prevent high frequencies bouncing of the screen and then returning back to baffle wall creating a harsh tingling sound that makes the soundtrack too bright.
You can learn more about this in this video interview with Tomlinson Holman.
For the home you could use plasterboard and timbre or MDF for the baffle wall with each section cut to size that is cut for size for the loudspeaker arrays and sub bass as you can clearly see from the above images.
Finding the absorbent martial to cover the front of the wall from side to side and top to bottom. It would make a great project.
Behind the THX baffle wall at Pinewood studios.
I plan to build mine sometime soon in the New Year.
