[jpeter1093]

Could I get away with using these behind my fronts which will be behind an AT screen?

 

[Brad Horstkotte]

You'd have to dig up the manufacturer's specs on the product in question, and see how the sound absorption characteristics stack up. And you'd have to use several layers, since they're generally only 5/8" thick or so. Probably more work than it would be worth, and rigid fiberglas isn't all that expensive, so you'd be better off using it.

 

[jpeter1093]

Thanks, Brad. Do you know of a local/chain source for rigid fiberglass? I didn't find it in my local Home Depot.

 

[cdy2179]



Quote:
Originally Posted by jpeter1093 /forum/post/20827379


Thanks, Brad. Do you know of a local/chain source for rigid fiberglass? I didn't find it in my local Home Depot.

This is what I've used. actually has slightly better specs down low than OC703. And it's cheaper. I used them at all first refelctions of the front 3. Tryed them on the front wall but didn't realy notice any improvement, it's not a reflections point of the front three anyway. Made a world of difference on actual early/first reflection points.

http://www.atsacoustics.com/item--Ro...f-6--1006.html

 

[localhost127]



Quote:
Originally Posted by jpeter1093 /forum/post/20827379


Thanks, Brad. Do you know of a local/chain source for rigid fiberglass? I didn't find it in my local Home Depot.

attempt to source locally so you do not need to incurr shipping costs (product is not cheap to ship).

http://www.spi-co.com/directory.html

google map "insulation" "hvac" etc and start calling around.


you can also source equivalent material as OC703 via http://www.bobgolds.com/InsulationContractors.htm (gas-flow-resistivity is what you'll be concerned with).

mineral wool will be cheaper but more difficult to work with (read: messy). OC703 is rigid enough that you can wrap fabric around it without a frame. it depends on what you are looking to achieve.


what is the specific, measured room issue you need to address? - as that will determine some variables in your design, materials, and approach.

 

[jpeter1093]

Thanks for the info. I don't have a specific issue I'm addressing but am in the midst of building a screen wall with an AT screen. The three fronts will be behind the screen and I understand the front wall (behind the speakers) should basically be covered with sound absorption materials. Maybe my basic assumption is wrong?