Need help with ceiling obsorbers.

Marbles · « **on:** 27 Jul 2004, 03:35 pm »

I am looking for something to obsorb the first point of reflection on the ceiling.

I am hoping to get something reasonably attractive in white, mabe 2' x 4' by as thin as possible, and no more than 2".

Anyone have any ideas?

Oh, and it needs to be white in color.

Thanks

DIY is an option.

davejcb · « **Reply #1 on:** 27 Jul 2004, 03:40 pm »

Fiberglass panel with white fabric seems like the obvious choice...

Red Dragon Audio · « **Reply #2 on:** 27 Jul 2004, 04:15 pm »

Quote from: Marbles

I am looking for something to obsorb the first point of reflection on the ceiling.

I am hoping to get something reasonably attractive in white, mabe 2' x 4' by as thin as possible, and no more than 2".

Anyone have any ideas?

Oh, and it needs to be white in color.

Thanks

DIY is an option.

Hey Marbles,

Why not use these http://www.knauffiberglass.com/index.cfm?fuseaction=prd.dspProdDetail&ID=1">pipe insulation covers?

They will give you both absorbtion and deflection at the first reflection points. You can cover them with whatever color of fabric you like too. To make them absorb more high frequencies, you should cover them in a 1/2" layer of polyester batting and then cover it in some acoustically transparent fabric. I would just make sure to remove some of the covering on the pipe insulation themselves or they will reflect too much high frequency info.

If you don't like the idea of half rounds on your ceiling, and you want really absorbtive material you should use http://www.knauffiberglass.com/index.cfm?fuseaction=prd.dspProdDetail&ID=12">insulation board from Knauf Fiberglass. Scroll down on that page and look for the 1.6 PCF in a 2" thickness (plain) it will do far better than any foam panel cost much less. If you go up to 3" thickness it will absorb even more.

Good luck and have fun!

Marbles · « **Reply #3 on:** 27 Jul 2004, 04:16 pm »

I was kind of looking at these: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=3278&item=3737694741&rd=1

but the stats here showed that they start to become reflective above 2500, or at least less obsorbtive.
http://www.audimute.com/AMP.pdf

Heavy, thanks for those links. I'm not intersted in the pipe covers, because the aluminum cover will be reflective, but those boards look very interesting.

Thanks.

zybar · « **Reply #4 on:** 27 Jul 2004, 04:56 pm »

Quote from: Marbles

I am looking for something to obsorb the first point of reflection on the ceiling.

I am hoping to get something reasonably attractive in white, mabe 2' x 4' by as thin as possible, and no more than 2".

Anyone have any ideas?

Oh, and it needs to be white in color.

Thanks

DIY is an option.

The new Minitraps from Ethan at Realtraps.com will do the trick and look nice in the process.

George

Tonto Yoder · « **Reply #5 on:** 27 Jul 2004, 09:51 pm »

When you said "ceiling," it reminded me of the Owens-Corning acoustic products:

http://www.owenscorning.com/around/sound/products/solserene.asp

Looking closer at it, it's undoubtedly more involved than you're looking for(but it sure LOOKS good); wonder if a local installer/dealer might have a small bit left over that he'd sell cheap/reasonable?? Unfortunately, it's WHITE, so you'd have to dye it.

Anyway, it might be a good heads-up for someone building a house.

JLM · « **Reply #6 on:** 28 Jul 2004, 10:54 am »

Lay-in acoustical ceiling pads are the obvious answer, as Tonto Yoder suggests. If you don't want to do the entire ceiling, just do a portion using 1x2s to define an area to create a drop ceiling portion of your ceiling. Dozens of styles are available. 2 ft x 2 ft tegular (that hangs slightly below the grid members) offer some of the best looks. Paint the grid and 1x2s to match the walls for a professional appearance. 2 ft x 4 ft pads can be bought that look like 2 ft x 2 ft. Perhaps Ethan would sell you some of the fiberglass he uses in Realtraps (the microtraps) that could lay directly into the grid.

Ethan Winer · « **Reply #7 on:** 28 Jul 2004, 03:48 pm »

Marbles,

> I am hoping to get something reasonably attractive in white, mabe 2' x 4' by as thin as possible, and no more than 2". <

As George mentioned (thanks George!), my company offers several acoustic panels that do just what you want. I'd suggest a few MicroTraps, which are 1-1/4 inches thick and are available in white. Follow the link under my name below for more information.

--Ethan

gonefishin · « **Reply #8 on:** 31 Jul 2004, 01:52 pm »

Quote from: Marbles

I am looking for something to obsorb the first point of reflection on the ceiling.

I am hoping to get something reasonably attractive in white, mabe 2' x 4' by as thin as possible, and no more than 2".

Anyone have any ideas?

Oh, and it needs to be white in color.

Thanks

DIY is an option.

Hi Marbles,

Just knowing how I've got to "blend" everything into the decor of the house (to keep the wife happy)...I pictured the acoustical material being picture framed in with maybe something simple, like 3/4" quarter round trim painted white (to match the ceiling and traps).

This would just tidy up the look a bit...as long as the material is rather thin.

Love to see what you come up with

Psychicanimal · « **Reply #9 on:** 12 Sep 2004, 08:00 pm »

There is a more elegant solution that does not involve panels. It works by diffraction, not absorption. Oh well, ask Steve Rothermel. He's been to my place...

Red Dragon Audio · « **Reply #10 on:** 12 Sep 2004, 11:52 pm »

Look at the 3rd product in the 3rd chart on this page. I know it's an half inch larger than what you were asking for orginally but it seems to have very good numbers for higher frequency absorbtion.
http://www.knauffiberglass.com/index.cfm?fuseaction=prd.dspProdDetail&ID=12

What was I think when I made the pipe insulator suggestion? It's like I didn't even read what you were asking for. Silly me.