GREEN GLUE UPGRADE

Hi Guys, I wonder if something can give me some advice on upgrading my current sound booth. This is a very simple set up and works pretty well for vocals but I want to be able to use it for drums so need to upgrade. I have been looking at green glue and wonder if someone could advice the best set up. I have attached a diagram of my current set up and 3 other proposed set ups. Just wondering which one will work best. I don't really want to go down the resilient channel path so any advice would be much appreciated. Do i go with proposed set up 1, 2, 3 or something else. My current booth is in my garden on a concrete slabs and covered by a wooden shed to keep the rain etc out. Kind regards

Hi. Please read the forum rules for posting (click here). You seem to be missing a couple of things! :) Sorry, but none of those is going to isolate a drum kit. Setup #2 would probably actually make things worse for low frequencies, since it is a 3 leaf system, and the GG under the furring is pointless. All three of those are fully coupled, so you are limited by mass law, plus the slight visco-elastic damping of the GG, which frankly is not going to make a huge difference, unless you also decouple.

I don't really want to go down the resilient channel path

Why not? It is your only real option, unless you prefer to go with a full "room-in-a-room" system. Unless you decouple the two sides of your wall, it will not and cannot give you high levels of isolation. There are no ways around the laws of physics through exotic combinations of materials. They all still have to follow the laws of physics, and without decoupling, the laws of physics are just not on your side. At a rough guess, you are getting maybe 30 dB of isolation right now. None of those options is going to give you anything even approaching 40. Take off the OSB on one side, use it to beef up the other side, add resilient channel two layers of 5/8" drywall with GG, and you'd be approaching 50 dB. - Stuart -