Or you can use the same as above but instead of 2 sheets you can omit that for 1 1/2" sheet of quite rock which is equal to 8 1/2" sheets of standard drywall and 12" of Safe and Sound.
So what you are saying is instead of putting the rockwool on the existing wall just start off with space then studwall, then rockwool last with fabric covering?You can cut the spacing a little. The rockwool between drywall layers isn't going to do much at all. Green Glue would be better by a long shot.
Assuming Green Glue.
2 layers 1/2" drywall
Total space - 5". That leaves you only using 6" total with 1" mineral wool inside the room or 7" total with 2" inside the room.
What I'm saying is build a standard stud wall, insulate it with regular fluffy insulation, and drywall the surface. Then mount the screen on that wall. Cover the remaining wall with mineral wool or fiberglass (higher density) and cover with black cloth.
That will give you the absorption you require, the isolation you want, and the 2" absorption with cloth will actually 'recess' the screen back a bit forming a nice looking shadow box effect.
You'll still need the corner absorption.
What I mean is looking at the subs response I got, which looked fairly good to me (I think it was within the +5/-5 range pretty much), is can this subs response be noticeably improved on? It sounds nicely balanced to my ears, not too boomy, powerful when needed so to go back and start moving everything again I would rather be sure that I will actually be able to sit down and hear the difference between this response and the potentially flatter response I may be able to achieve? Or will it now be just more peace of mind to see that flatter line?Up to you. Seating position and sub position can do a lot to change frequency response.
No data to support their matketing sound bite.1 1/2" sheet of quite rock which is equal to 8 1/2" sheets of standard drywall
I know I will probably sound thick here but what is the difference between the material used to make a stud wall and the drywall panels? I thought the the drywall panels were what makes up the stud wall?No data to support their matketing sound bite.
It all boils down to mass and how much damping material is used. You'll find that any low-mass panel will not get you much isolation. Also lower cost pre-damped panels simply have less damping compound.
You'll find that a much better wall can be obtained just as Bryan stated. Standard (heavy) 5/8" drywall and a field application of a damping compound. Less expensive, less waste and better.
That would be the studs - a.k.a. dimensional lumber, a.k.a. 2x4s, 2x6s, etc. The drywall just covers up the studs.I know I will probably sound thick here but what is the difference between the material used to make a stud wall and the drywall panels? I thought the the drywall panels were what makes up the stud wall?
Also do you ship green glue to the uk? How much would I need to do this project, the main wall will be 12ft 11inch by 8ft 5inch