This past weekend continuing with improving the HT acoustics, I put (6) sheets of 2" thick 2' x 4' Roxul Rockboard on my screen to make is a "dead zone" instead of a resonance/reflection zone.http://www.atsacoustics.com/item--Ro...f-6--RB60.html
This is a case of 6 pieces of 24 x 48 x 2 inch Rockboard 60 manufactured by Roxul. It is rigid mineral wool board similar to Owens Corning 705 at a density of 6 pounds per cubic foot.
I used Roxul Rockboard instead of OC705 because I am NOT going to cover it, so did not want itchy stuff.
This was on my "to do" list for almost 2 years.....finally did it this weekend.
This is on back of my DIY screen, there is a controlled 3/4" gap to the screen via the metal plates I added for supporting, secured the panels by suspended ceiling 14ga wire.
Final product done and secured, the outside portion has (2) 2" thick 2 ' x 4'pieces fitting, the inside 1 due to screen curve allows more on outside.
It's also with about a 3" air gap to the wall now.
screen hung, btw It's also 50 lbs heavier.....my wife complained I'm "slaving her" with all this heavy lifting.:
(that's my acoustic cloud I'm making just today, i was not there when I did the Audyessy re-run)
I immediately could tell improved bass, I've not taken REW plots yet, but I did re-run my Audyessy and it shows how its EQ is applied, look at the before/after for the center channel!
Yes, I was very careful about having my mic in repeatable positions as well for before/after check..