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Do I stuff carpet on this vented box?, Just curious...
krafty
post Apr 2 2013, 20:18
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Hi folks.

I'm just concluding the final phase for a simple vented box.

As I constructed the cabinet entirely based on the speakers properties, now should I leave the inside of the cabinet free or...
may I stuff there a small carpet in "U" shape, going around the vertical part of the vent?
Is it necessary? Or do I just leave like it is?

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Arnold B. Kruege...
post Apr 4 2013, 13:06
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QUOTE (krafty @ Apr 2 2013, 15:18) *
I'm just concluding the final phase for a simple vented box.

As I constructed the cabinet entirely based on the speakers properties, now should I leave the inside of the cabinet free or...
may I stuff there a small carpet in "U" shape, going around the vertical part of the vent?
Is it necessary? Or do I just leave like it is?


It is always good to figure out what you want to do before you try to do it. ;-)

Usually, speaker enclosures are stuffed with absorptive material in order to solve an audible problem. What is your problem?

My first comment is that the box might rings like a large bell when you rap the sides of the box. You want a dull thud. Cross-braces from side-to-side, end-to-end and front-to back can address that. the braces need only be 1 1/2" x 1 1/2" .

Whatever you stuff the box with, it needs to be absorbtive at the frequency you want to damp. Carpet pretty well fails that requirement all of the time. Most box stuffing is fiberglass or cotton batting.

If you want to get an idea about the densities and thicknesses of absorptive materials to address a certain frequency, try this:

http://www.whealy.com/acoustics/Porous.html

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