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Old 11-09-06, 10:04 AM   #3 (Link)
 
crackyflipside
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Re: Somewhat unique acoustics questions


Quote:
bpape wrote: View Post
Front wall should be dead completely for multichannel.

Diffusion on the rear, that's a whole nother topic. Don't think a DVD rack is going to provide that - it won't.

The star ceiling can be made from a mix of materials so only selected panels are 703 and the rest are hard - that's the way I'd go - just do the ceiling reflection panels in 703 - maybe 2@2x4. Have done this many times in my designs and it works well. IMO, a dead floor and a dead ceiling is too dead.

Side walls - hit the reflection points and then scatter additional absorbtion around the room evenly. Don't have to cover a lot of it but you want it equally distributed around the space for even control - though I prefer to leave the rear a bit more lively.

Bryan
Well the dvd rack covers about 85% of the back wall



I was thinking of making the back part of the shelves large panels of rigid fiberglass absorbtion. and the rear corners to hold the bass traps from floor to ceiling. Not to mention the AV closet in the back of the room is a giant, ugly diffusor. Should I treat that as well or leave the surface hard?



I was also thinking about the ceiling, and I thought since it was soffited, leaving the bottom and sides of the soffit with hard surfaces and treating the higher part of the ceiling completely with absorbtion would be ok. I neglected to mention there would be two ceiling fans on the higher part of the ceiling, maybe that would provide enough diffusion to completely treat the higher part of the ceiling.

For panels, would the same thickness, let's say 2" of rigid fiberglass would be good for all the absorbtion?

I'm not sure what 703 is but I also forgot to mention that I am huge on DIY and spending the least amount of money for the best value.


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