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CHEAP sound proofing my room? - Page 2

post #11 of 12
Quote:
Originally Posted by HiroPro View Post
On the money...

Do you others know how long a bass wave is at say 20Hz !!! I'll tell you... it's 17m or 56 feet !!! This is why it's hard to test subs in an anechoic chamber and some manufacturers use a tower/crane and hoist the sub way up in the air (100') to take measurements.
It really makes you wonder what those guys who stick 18" subs in a Honda are thinking... not air space, that's for sure.
Mako
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Mako
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post #12 of 12
Quote:
Originally Posted by Fooliobass View Post
It really makes you wonder what those guys who stick 18" subs in a Honda are thinking... not air space, that's for sure.
The reason is for the SPL that is created inside an enclosed space. You cannot accurately reproduce bass in a vehicle without a large volume of air being moved. You do not have the space to recreate the wave so you vane to do it with actual pressure.

I have a rather easy solution if you want and can poke holes in you wall?

Get about 2 cans of "Great Stuff"(spray-able expanding foam) that they use to fill cracks in walls that leak and stuff like that. Put a small hole about 4-5 inches above the baseboard and bend the straw slightly downward and spray away until it gets to the hole, repeat moving up the wall about another 4-5 inches. If the sub is in a corner then you have the ability to measure from the corner to about 24 inches and make another set of holes just like the first ones and then fill those.

That will make the wall denser and less prone to vibrations and will help to absorb the bass before it passes through the wall.
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