Atmos Implementation Starts Today!!
I've been planning this final step for a year when I actually had time to construct. Plan has taken many twists and turns.......what was once acoustical treatments with coffers has turned into an implementation of Dolby Atmos as primary purpose.
I've finalized a plan based on what little info is out in public domain and what Dolby has decided to leak concerning Atmos........most don't realize Atmos announcement was supposed to take place late August when specific details would be finalized.
Triad has been helpful but does not have definitive answers from Dolby so my construction plans are based upon best guess and what little information I have at my disposal.........I do have a little birdie on my shoulders who will most definitely help me when tough decisions have to be made concerning location and speaker angles to MLP. Due to room dimension issues, I 've decided to emphasize the front three seats for Atmos and rear seats will have compromises .....ie. not enough real estate for rear ceiling speakers for second row.......first row is fine.
From what I've been told by Triad in consultation with Dolby, front ceiling height speakers are most critical in implementing Atmos, minimum of at least four ceiling speakers with Dolby highly recommending six. In my discussions with Triad, no mention on location concerning width nor dispersal characteristics of speakers, just timbre matching was critical so eq plays a significant part if using varying models of speakers for LCR, side/rear surrounds and ceiling.
Based on Triad recommendations, my target is to make ceiling cloud 7-3/4 to 8" deep which I' going to have a hard time attaining. My vertical's are 7-1/4" with 1/4" reveal to beam which places structure at 7-1/2". If I add cove moulding to inside bottom beam, I may squeak out another 1/2 inch for a total of 8" depth.
Triad's recommendation using custom built Silver LCR in angle baffle may be my only alternative. In-wall Silver/ 4 LCR's might work given a jerry rigged ceiling bracket but speaker is huge at 4" X 14" X 26"........besides, I've tested possible angles in an 8" confine so at best I might be able to squeeze out 35-40 degree downward angle which might suffice. With this investment, might isn't good enough.
So..........based on information at hand, I was planning to build two 6' X 8'boxes with middle leg attaching both, but that design is problematic for middle ceiling speaker implementation, so I will be building a ceiling cloud 8' X 13' to house six ceiling speakers with 4" absorption with 2-3" air gap to help with LCR first reflections and SBIR issues with ceiling speakers...........any available space leftover in rear will have diffusion. May not be best plan down the road, but allows for future flexibility and is best plan with current available information.
We'll soon see how all pans out.........
BTW, cards are a visual metaphor.........