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Has anyone ever built a hush box for their projector?? Do they actually work, and how much noise reduction should one expect from it?

I understand that the newer projectors for home theatre use are substantially quieter than they were just 5 years ago. However, because the inlet air can be filtered, it reduces the amount of passive dust exposure to the pj.

I am helping a friend who is designing his new home theatre room and the question has come up. I'm not sure he even needs one as the rest of his intended gear would be mid range quality at best, but he is a master at cabinet making and wood working, so I know he can design something unique and esthetically pleasing. He is thinking about the optoma HD200X, ceiling mounted, as his projector btw. That unit has an operatiing noise signature of 32dB/34dB (STD/Bright).

My concern is that the intended pj location is just over 14' from the screen, but the rear viewing position is at 18', and with 8' ceilings I'd be concerned about a distracted viewing experience (as in... seeing the hush box: not an obstructed view, but a distraction to the viewer). The other concern would be of course the distracted audio experience because of the pj noise. Even at 32 dB (basement HT, so likely only the lowest lumen setting would be required) that would be audible during quite scenes.

Any thoughts would be greatly appreciated.
 

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I can't specifically speak about this projector. The one I used to have was 19dB and I never heard it. Everyone I have talked to (including pros) over the past year have said hush boxes are a thing of the past.

You need to take your concerns about height of ceiling and obstructing view back to him and convince him to use his abilities building something else.

My 2 cents...
 
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