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Old 10-06-2012, 08:55 PM   #5
330iPilot
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Join Date: Mar 2005
Location: Dallas, TX
Posts: 577
My Ride: Titanium Silver 330i
Then you are stuck. Bass is the most difficult to contain. Adding mass and de coupling the ceiling from the floor of the room above along with all of the other walls is the only way to do it. And it's not cheap.

http://www.soundproofingcompany.com/...oof-a-ceiling/
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