Spring-Loaded Screw Turns Drywall Into Sound-Absorbing Panels

Looking at the web site that is in the op post.

The screw start absorb at 250 Hz to 4000 Hz  according to their measurements that they show from a specific part of a chart (what happens below 250 Hz?!).

Anyway what we know is that those rather high frequency is what are the easiest ones to treat. So some of the benefit is that we do not need that much high frequency treatment that physical is rather thin in comparison to what we need to use below 250 Hz..

The real benefits for us audiophiles is that those screws dampening BELLOW 250 Hz. That is those vibrations that go to the structure/studs underneath the dry wall and to other rooms/neighbors.

And below 250 Hz is where the bass traps need to be intrusive thick in our homes there where the real benefits would be nice to see.

For audiophiles i believe it is of a limited when/if ordernary 2"-4" panels can be used.
With those ordernary panels you can adjust the placement and the amount of panels to get the level or reverberation that you like.

You do not want to overasorb and get a dead sounding room. That may be a risk that we end up with with those screws-springs. 
IF that happens what should you do then.. put up some panels that are hard as floor tiles so you get some reflections back into your listening space.. 🤔

But for comersial spaces they have a great advantage for spech and all the nasty sounds.

View link in new window while you read
1:The screw thread goes into the wood.
2:The bottom cup also countersinks itself into the surface of the wood
3:The spring section is within the drywall chalk section
4:And the last slightly wider head is suppose to hang on to the whole sheet weight?????? (to me, not for long it wont unless maybe there’s one at max every 2ft) and those things don’t look cheap.
https://ibb.co/s2498dg

Cheers George

I think I saw where they spec'd, for "steel studs", 1 per 8" on stud and every 12" "in the field" (...!) How's that for affordability.

@emailists 
You are correct, the install was probably not done properly. In my slightly over 2700 cubic feet listening room, we used 71 large cartridges of green glue and 21 of sealant. For those who think quietrock is expensive, think again. Conventional double sheetrock/green glue construction verses quiet rock will end up costing you twice as much. But you get what you pay for. On top of that quietrock does not work well in ceiling applications.  In my house of stereo, I can play NIN hesitation marks at 90 dbs and there is zero vibration outside the room. If you love bass and want to keep it inside, there is no compromise. You can see some of the construction process laid out in my house of stereo system.