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Tuesday, June 9, 2009 20:22

I have friends telling me that freaks out there are just wasting time buying foam. One of these is that the acoustic foams are no more than a fancy packaged version of egg cartons.
After listening to this many times, I decided to check them out with some commercial products from the Riverbank Acoustical Laboratories forum. I recently discovered these in my "attic" files and have reproduced them here.

Egg Cartons do, indeed, have acoustical value. They measure NRC - 0.40.
However, deeper details and research tells the rest of the story. While commercial products exhibit a smooth curve, there is a "pothole" in the acoustical road with egg cartons.
Another thing to consider is flammability. Take an egg carton outside and put a match to it! Then ask yourself, "Do I still want this on my studio walls?"



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