This is topic Spkr placement behind the screen with different ratios ? in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.


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Posted by Alan Gouger (Member # 543) on 06-28-2003, 12:37 PM:
 
Hello

I am almost finished with my home theater and I am going with a ( due to limited space) 9-foot wide 235:1 scope screen.
Maintaining constant height I have motorized curtains that open from the side and stop at presets for the different aspect ratios.
I went with the micro perf so I could place my speakers behind the screen and out of site.

My question is where do I place my side speakers. If I place them based on the 185 ratios they are to close and if I place them out to the end of my screen for scope and maximum separation then when the curtains close for scope movies the speakers are muted.

I know in a real theater following the same constant height formula in the flat format you may have 40 feet of separation but I would think you would still want the speakers out as far as possible.

What do they do in the real theater and what are your recommendations for my undersized screen regarding behind the screen speaker placement. I definitely do not want to see them and want them out of site.

Thanks!
 

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Posted by Steve Guttag (Member # 268) on 06-28-2003, 12:55 PM:
 
In "real" theatres, you use acousticly transparent masking for the side masking. When the lights are down, you won't see through it...when the lights are up you can kinda see the screen through it. It is kinda like speaker grill cloth.

Some front-end guys will sew velour to provide a crisp edge to the masking (acoustically transparent masking is not good for hiding the aperture plate shadow). I don't like that method very much. The different materials shrink at different rates and eventually will look bad. A better method is to fold the acoustically transparent masking over on itself several times and then sew it in place or around a pole to provide that nice crisp edge.

Steve
 

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Posted by Alan Gouger (Member # 543) on 06-28-2003, 01:49 PM:
 
Ahh thanks Steve. Time to get new masking curtains made
 

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Posted by Jack Ondracek (Member # 1466) on 06-28-2003, 01:52 PM:
 

quote:

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A better method is to fold the acoustically transparent masking over on itself several times and then sew it in place or around a pole to provide that nice crisp edge.

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