I have a 7.1 system in a dedicated theater space 10 x 19~ with a 133" screen and two rows of 4 theater seats and a planned addition of a bar and stools behind the 2nd row. My current speakers are 3 ProCenter 1000s for L R C frontstage, Procinema 800s for side surrounds and Procinema 600s for rear surrounds.
After converting for Atmos for a 5.1.2 setup, I mounted my PC 600s overhead and, due to space constraints put my 800s on the back wall for surrounds. This is less than ideal, but I have a long room with a narrow aisle which could be impacted by surrounds sticking out at ear level too far from the side walls.
I got advice from the Atmos thread but need help with speaker selections as I upgrade from a 7.2 Onkyo 636 to a 9.2 (11.2 preout) Denon X7200. My ultimate goal is to create a 7.1.4 Atmos setup.
I ordered a pair of 8040BP surrounds for wider dispersion and more forgiving placement. I believe if I use them on the sides I can slightly move forward my seats to allow enough room for people to walk around the midwall speaker before going down the narrow aisle to their seats.
I need 2 more surrounds. Would the Mythos Gem bipole surrounds work well with my current DT system, or should I get 2 more 8040BPs.
Also, since the Gems are a good bit shallower, would they be a better choice for side surrounds?
Finally, I can move up my 800's for the other 2 overheads, or should I keep all 4 overheads the same speakers either the 600 or 800? Lots of questions, I know, but I really look forward to your help!
I added attachments with very rough drawings of my system.