I just finished framing a drop down ceiling where I have added 4, Def Tech DT6.5 LCR speakers for Atmos. I was excited to 1) test a used Rotel amp I just purchased, and 2) to get Atmos running again, so I ran through the Marantz Audyssey setup prior to having the project finished. Audyssey set the speaker’s crossover to 250hz. Def Tech recommends 60hz.
Eventually, I’d like to add Rockwool to the ceiling by either placing cloth over the center area and putting the insulation above. OR, perhaps add drywall with various cuts in it (similar to PS Audio’s listening room’s sound absorbers/ diffusors)
My questions are: 1) Should I “box in” the Atmos speakers to create sort of a speaker cabinet for them inside the ceiling? If the “cabinets” are built and sealed correctly, could I expect better bass response from the Atmos speakers? And 2) Does anyone have experience treating a room for echo by mounting Rockwool in the ceiling, rather than on the walls? I have experimented moving treatments around the room with similar results, but they have always been on wall rather than on the ceiling. (And the ideal number of treatments is 8 - any less and echo still remains, anymore and the room sounds a bit too dead.)
Thank you all, again, for your help and I hope that everyone has a great 4th of July! (I have attached pictures below that can hopefully help everyone visualize this a bit better.)