How well does QuietRock reduce bass frequencies?
Just as the title says, how well does QuietRock reduce transmission of bass frequencies?
The reason I ask is because I’m planning on building 2 leaf walls with double 5/8” drywall (double drywall, 2x4 framing with insulation, 4-6” airspace, 2x4 wood framing with insulation, double drywall) but at the cost of QuietRock, I may not be able to get as much mass with my budget.
I know QuietRock has a pretty good STC rating but I'm not so much as worried about higher frequencies and more worried about lower frequencies (mainly from drums).
So, would it be more worth it to get more mass by buying regular drywall or less mass and get the QuietRock? If it's relevant to cost, I'm in Virginia, USA.
Thanks in advance.