[Charles Xavier]

Let me know what you have in mind and Ill ask the professor what he recommends.
Glad you got them ok.
Igor

I was just thinking of setting them into a shadow type box using the 1/8 th inch masonite with maybe felt backing so I don't scratch my screen and then maybe a light weight wood to make the square for the sides maybe 1/4 inch thick and about 2-3 inches high

[Charles Xavier]

temporary

[Charles Xavier]

Need to order a 4 ft for my right wall . I stacked them up there and I like the effect

[Quiet Earth]

Nice looking panels......  And paintable too - way cool! 

I'm puzzled by foam being able to diffuse sound and not absorb it. Are they made out of a foam that is so dense that it's no longer the same thing as a foam that you can squeeze?  If so, would you say that they reflect mid range and treble sound in a similar way that a lightweight wooden diffuser does (all other things being equal, such as shape and size) ??

Thanks for the clarification 

[Charles Xavier]

Not squeezeable. Its more like styrofoam

[S Clark]

Need to order a 4 ft for my right wall . I stacked them up there and I like the effect

I've got mine at the first reflection points. In my room the goal was to widen sound stage, and they help significantly.  I have already talked to Dave about ordering more. 

Scott

[jriggy]

Not squeezeable. Its more like styrofoam

So, hard to the 'tap' but very light in weight?

That, combined with a painted surface  seems like it would do the trick in getting it close to a 'hard plastic' like surface huh?

 Plus, I do not see Dave offering something that he did not fell was completely worthy.

Im game as soon as I work out where they should go in my room.

[Quiet Earth]

So, hard to the 'tap' but very light in weight?

That, combined with a painted surface  seems like it would do the trick in getting it close to a 'hard plastic' like surface huh?

Ok, so similar to the old skyline diffuser material then.

[ADD]

Hi Charles Xavier,
I will check with Dave but I think felt in the back of the panel is a great idea. Can you add a simple shelf that rests on your component rack in the back of your components and just high enough so the top of the top shelf is just below your screen. That way when you want to watch an old Frankenstine movie(one of my favorites) you just lift the panels off the shelf and set them at another reflection point in the room for fun. Dave always had me put diffusers in the very rear of my room also.
Igor

[dBe]

Hi Charles Xavier,
I will check with Dave but I think felt in the back of the panel is a great idea. Can you add a simple shelf that rests on your component rack in the back of your components and just high enough so the top of the top shelf is just below your screen. That way when you want to watch an old Frankenstine movie(one of my favorites) you just lift the panels off the shelf and set them at another reflection point in the room for fun. Dave always had me put diffusers in the very rear of my room also.
Igor

Charles, two materials that you might want to try for a shadow box are 1/2" honey comb cardboard (packing supply houses) or foam-core (arts and craft stores).  Both are light weight and glue well.  You can put a thin wood face trim on them and they will look very good.

Mr. Quiet earth -  The material is 2.2 pound per cubic foot density styrofoam.  It is the densest foam available.  Very lightweight and a bit fragile.  That is why we recommend care in placement and mounting.  Works great.

If we could come up with about $100K we could get tdies made for injection molding.  That way we could chose from densities up to about 20pcf.  I don't see that in the near future 

Dave

[jtwrace]

If we could come up with about $100K we could get tdies made for injection molding.
Dave

I could do it for less than that.   

[dBe]

I could do it for less than that.   

I'm game, how much less?   

Dave

[jtwrace]

I'm game, how much less?   

Dave

 

[dBe]

You tempter, you.   

Dave

[ADD]

What did I miss this time????
Igor

[satfrat]

Dave is there any frequency absorption with the thickness of the styrofoam or is it strickly diffusion? Thanks,,, I'm still looking for some possible ceiling space. 
 
Cheers,
Robin

[dBe]

Dave is there any frequency absorption with the thickness of the styrofoam or is it strickly diffusion? Thanks,,, I'm still looking for some possible ceiling space. 
 
Cheers,
Robin

Not really in a useful manner in the bass.  There is a bit of absorption in the lower mids, but it is relatively benign and with a broad Q.  What frequency are you going after?

Dave

[satfrat]

Not really in a useful manner in the bass.  There is a bit of absorption in the lower mids, but it is relatively benign and with a broad Q.  What frequency are you going after?

Dave

It was the a general info quest question Dave, just curious about what absorption properties styrofoam might have. Installing your diffusers would be easy peasey on my drop ceiling. Fact is I have room treatment from 6 different companies now and along with having no discernible issues that I know of, I also have no available room. 
 
But damn it Dave, them are some pretty diffusers and ADD's pictures have got me mind working OT. 
 
Cheers,
Robin

[DTB300]

Back wall in room.  ABB1's sit in front of GIK 244's.  No comments yet as I am still experimenting with final placement.  I like them better in rear of room compared to front of room or 1st reflections.

[dBe]

Back wall in room.  ABB1's sit in front of GIK 244's.  No comments yet as I am still experimenting with final placement.  I like them better in rear of room compared to front of room or 1st reflections.

At first reflection points, they should be turned 90 degrees so the cells are horizontal instead of vertical.  When used in the front of the room, they need to be precisely centered and usually flush to the front wall with the center of the diffuser at ear level.  That will give the most depth.

Let us know your the final verdict.

Dave