Spring-Loaded Screw Turns Drywall Into Sound-Absorbing Panels

I say Quietrock. I built my 2-channel room with Quietrock 545 - more than an inch thick, with embedded sheet steel.

Not cheap - but cost-effective. The quality of the silence is remarkable - actually, most people DO remark on it as soon as they enter. As a bonus, the company is very good to deal with.

It's important to distinguish sound in the listening room from sound transmitted outside it. It's easy to reduce sound transmission by allowing the drywall to flex or otherwise move. BUT that turns the walls into passive woofers moving out of phase with the speakers, and that's not good.

Quietrock solves both problems. Not cheap - but cost-effective.

It appears to only decouple in 1 axis.
visually seems to only be usable for ceilings (not mine;))

Built 3 custom homes, all on a self-proposed budget.
This one has 3 exterior walls, ( all exterior walls in the home are 2 X 6 ).
Exterior is brick, air gap, 1" styroboard foil both sides, 2X6 ( 5.5" rockwool insulation ), 2 layers (1/2" each ) of " Soundstop fiberboard, screwed in 2 separate layers, then finished with 5/8" sheetrock. 8 foot movable record shelves adorn 2/3 of the side walls. Soundlab 945 Majestics, SALLIE rear attenuators, Movable listening furniture, live plants......all-analogue.

ivan_nosnibor
I think I saw where they spec’d, for "steel studs"

 Not with the center self countersinking head just under the spring. That’s for a wooden joist, stud or noggin

Cheers George

Hello,
I don’t think this is a good idea. Drywall already has this kind of property. They already have the green glue and it just works a little. Take on the reflection points with room treatments and then work on the bass. That is the most important.