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Sound dissipating wall assemblies rely on "mechanical disconnection" of the members. An ideal wall has a 2 x 6 (or wider) plate and header with a system of 2 x 4 studs on each side, set on 16" centers, each side being on a different spacing schedule. That way, a wall membrane on one side can't mechanically transmit vibrations to the other side.
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There ain't nothin' more powerful than the odor of mendacity -Big Daddy
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