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how can I make the back wall transparent?

If this is the wrong place for this topic please move it

My listening room is 11.5 x 15 and my speakers are 3.5 ft from the back wall.

I have spent considerable effort tweaking stuff, to the point where the system sounds very spacious and deep, BUT it still does not sound as spacious as systems with 6-8 ft of free space behind the speakers.

Is there any aesthetically pleasing wall treatment available that would give me that depth without moving the speakers

Taking the wall down is not an option:-)
williewonka
chrisr's avatar
chrisr
543 posts
 
Auralex has some good solutions too.
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lowrider57's avatar
lowrider57
5,417 posts
 
Many thanks, williewonka, I appreciate you sharing your research.
I did not realize that vinyl could absorb sound waves.

I've seen some types of acoustic curtains, as one of your links points out, they are made of fabric with a vinyl layer. But what is interesting to me is a roll of MVL and using it at the top of the wall where it meets the ceiling.
I have a tapestry on the wall behind my listening position and a vertical acoustic panel to right of it in the corner. The only problem is making this vinyl strip look aesthetically acceptable.

I was also wondering if I could use vinyl as a type of crown moulding behind me.
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