This is my 7th theatre so I learned from many mistakes made previously. There are no rattles from the wall that supports the screen. The contractor that built all 4 walls knew of the bass power that his walls would need to survive without rattles. He glued, nailed & screwed everything & used sill sealer to avoid wood on wood squeaks. See attached photo.You don't have any problems with all of those subs shaking that wall and the screen, causing rattles? Did you have the wall built in a special way? Im also wondering about the suspension ceiling rattling. Seems like bass has a way of finding anything that is lose.
That theater looks great! I plan on doing something similar. Ive got a few more questions if you don't mind.
Some guys say that the 4k projectors with HDR still don't look as good as an OLED TV screen. What do you find? I've also read some say the perf screen require a compromise in image quality. Do you find that to be true?
The suspended ceiling is Acoustic Ceiling Tile with a high NRC rating available in black or white. It is extremely important not to use general purpose ceiling tile. The acoustic properties of ACT are amazing! No squeaks whatsoever, even more important considering the 4) Atmos suspended speakers.
You asked some great questions! Here are answers:
1- I have a 77", 65" & 2) 55" OLED in the house. OLED offers the greatest contrast, blackest blacks, & amazingly intense colors. They offer the most stunning picture available today. HOWEVER, we find ourselves drawn to the 144" diagonal projection system & neither of us want to watch the new 77" OLED. The projection experience is unlike any other. It draws you in & we find that no OLED monitor satisfies after experiencing it. This is key: step up to the SONY VPL-VW695ES. It is leagues ahead of the reasonably priced SONY VPL-VW295ES projector & is well worth 2X it's cost. It has greater contrast & brightness.
2- I completely agree with the opinion that the perf screen may compromise image quality. That is only an opinion, but I chose a top rated screen WITHOUT
3A- To avoid using a perf screen, I chose the largest screen dimension possible, keeping 17" of space above & below the screen & enough space right & left for 2) ML ReQuest speakers on each side. I mounted a ML Logos Center Channel speaker above & one below the screen in the 17" gap, so your ears perceive the center is midway between the top & bottom. It literally sounds like the center is coming from the middle of the screen. Each Logos center channel is driven by a Krell FPB600 as shown in attached photo.
3B- The dimensions dictated a 144" (12' diagonal) screen is the largest that would maintain the 17" open space above & below the screen. Photo of screen assembly & back lights attached.
3C- The 4) REL HT/1508 Predator Subwoofers are 19" high, but the each 15" driver is only 17" above the ground. So all 4) REL subwoofers sit just below the 144" screen, 2) on each side of the Logos center channel & are balance-output-connected to the LFE on the Anthem AVM 60 Processor.
3D- Conclusion: If you choose not to use a perf screen, maximize the screen diagonal dimensions your room allows, leaving empty space for speakers above, below & to the sides of the screen.