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D.I.Y. Bass Traps- calling acoustic techs....

I have been reading about diy bass traps but still have some questions. For me I am going to build some round tubes with fiberglass pipe wrap or Rock Wool. This is avail locally in 3 ft sections and 12 in diameter with a 2 in thick wall. The paper cover can be removed and wrapped with cloth. The ends can be glued on with mdf or plywood.
The problem I have is a 50 hz bummp. Most of what I am reading says these traps are good around 100 hz. Do you think stuffing each tube with more fiberglas insulation will make them more effective?
If so, should it be packed loose or tight?
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Showing 1 response by rives

rives
953 posts
 
To deal with a 50 Hz bump you will need the trap to be VERY large in diameter. This is an absorbing kind of trap and to be effective needs to make it to the 1/4 wavelength, that is roughly 5.5 feet.

If you go to our resource page. you will find there is an article on bass traps by Ethan Winer which we supported. This is a good intro into types of traps and how they can be effectively used.
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