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John Heisz - Speakers and Audio Projects | Will Speaker Damping Material Still Work if it's in a Plastic Bag? Let's try it and find out. @IBuildIt | Uploaded 1 year ago | Updated 3 minutes ago
Bag it! If you are concerned that the plastic will crinkle and make a sound in the box, use cloth instead. Hey, you have a sewing machine, right? No? A stapler, then! Glue gun!
Seriously, there's little chance the bag will make a sound, since the inside of a speaker isn't a wind tunnel, and you'll want to keep it away from the port anyway. The port is windy, not the box. Got it?
The point is that SOUND GOES THROUGH thin stuff! RIGHT THROUGH! That includes thin plastic! RIGHT THROUGH! Sound isn't air. Sound isn't wind. Sound is energy and it goes RIGHT THROUGH thin stuff!!!
Seriously, again, thin plastic is perfect since it will completely contain the fibers you are losing sleep worrying about. And the sound passes RIGHT THROUGH IT! Like MAGIC!
So you can use it for those intimidating acoustic panels you want to build, but are terrified of the life-ending cancer-causing fibers that will devour your existence from the inside out! Just bag it, bro!

The big reveal on the recorded music is that the shallow box was B and the deep box is A. But I may have skewed the results of the guesses for each by leaving the label on each track. Also, guesses like this have a cascade effect, where guys will peruse the comments already left to see what the majority is going with, and may use that as a deciding factor if they are not quite sure.
If there's a difference between the two, it's a very small one and in my opinion not something to be concerned with. I know for a lot of guys any difference is a BIG difference, but my conclusion is that I wouldn't hesitate making a shallow speaker box if I need it to be shallow.
I'm thinking very specifically about how the driver is mounted in a transmission line speaker, usually partway down the length of the pipe and not having much space behind it.

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Will Speaker Damping Material Still Work if it's in a Plastic Bag? Let's try it and find out. @IBuildIt

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