Has anyone used "Quiet Rock" sheet rock in room?


Has anyone used "Quiet Rock" sheet rock on the walls and/or ceiling in their listening room? I am building a new dedicated sound room and I am trying to do all the "small stuff" (i.e. clean power and a well built/designed/acoustically treated room). All input would be appreciated.
keithmundy

Showing 1 response by audiokinesis

Rives is right - a wholistic approach is by far the most cost-effective. Getting wall transmission down by 50 dB is of academic interest only if your doors only isolate by 25 dB and/or if your air conditioning ductwork acts like an intercom. You gotta pay attention to all the little things - the wall outlets themselves may be a significant sound transmission pathway. Sound can transmit by vibrating the air or by vibrating a large structure which in turn vibrates the air.

Also, if the walls of the room are somewhat lossy at low frequencies this works in your favor because it damps the low-frequency room modes. Consider using resiliant channels to hang the sheetrock; this is far more lossy than direct attachment to the studs and significantly reduces mechanical sound transmission. Insulation in the wallspace would reduce air-borne sound transmission between the walls. But, what about the door?

Nothing wrong with Quietrock, but don't blow your whole budget on that unless that's really the only problem you have. It's like having six leaks in your rowboat so you do a really really good job of fixing only one of them.

There are two chapters chapter devoted to this subject in Earl Geddes' book, "Premium Home Theater: Design and Construction". It will save you far more than its $44.00 price.

http://www.gedlee.com/Home_theatre.htm

Duke
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