Low cost diffusors?

[Phrygian]

Hey guys

Would 4" pyramid foam be a decent diffusor or a waste of money? I know generally odd shapes with a mixture of deep and shallow grooves is better, but for a low cost alternative would these be ok?

Acoustic Foam Sound Insulation :: Acoustics with Foam

I appreciate the help! In the last few days alone I've learned so much on this subforum. You guys rock!

Matt

[Starlight]

Matt, acoustic foam is designed to absorb high frequencies and reduce flutter echo. I haven't heard of foam being associated with diffusors.

[boggy]

Originally Posted by Phrygian

Hey guys

Would 4" pyramid foam be a decent diffusor or a waste of money? I know generally odd shapes with a mixture of deep and shallow grooves is better, but for a low cost alternative would these be ok?
......

No, this products aren't diffusors.

Cheers

Boggy

[Phrygian]

Originally Posted by Starlight

Matt, acoustic foam is designed to absorb high frequencies and reduce flutter echo. I haven't heard of foam being associated with diffusors.

That's what I thought as well. Thanks for clearing that up!

[Phrygian]

Originally Posted by boggy

No, this products aren't diffusors.

Cheers

Boggy

Thanks Boggy!

Can anyone recommend some good low-cost diffusers? Thanks in advance!

[PaulP]

Originally Posted by Phrygian

Can anyone recommend some good low-cost diffusers?

There are no good low-cost diffusers.

Unless you build them yourself, that is.

[duff mcshark]

In one of the last issues of tape op they explained how to make one for cheap. Look up the BBC diffuser.

Sent from my C771 using Gearslutz.com App

[Glenn Kuras]

Originally Posted by PaulP

There are no good low-cost diffusers.

Unless you build them yourself, that is.

Yes and no. It really depends what the person is going for. There is diffusion that is low cost made of EPS (as we sell), but if you want more of pro look then you would go with wood diffusors (which we also sell) but the cost can be 3 times more.

[psykostx]

If you paint the pyramid foam with a thick coat, it does diffuse the HF a bit. Fine mohagany bookshelves loaded with leatherbound books work well and add sophistication. I like buying old books on early 20th century electronics and sticking them on shelves in my studio. Adds a nice smell and visual touch as well as diffusion. Plus you get a lot of overly technical info on very simple components.

[Glenn Kuras]

Originally Posted by psykostx

If you paint the pyramid foam with a thick coat, it does diffuse the HF a bit. Fine mohagany bookshelves loaded with leatherbound books work well and add sophistication. I like buying old books on early 20th century electronics and sticking them on shelves in my studio. Adds a nice smell and visual touch as well as diffusion. Plus you get a lot of overly technical info on very simple components.

Proper diffusion is more then just random books (which could actually absorb) and not so sure about the painting thing. See the following.
How Diffusion Works. GIK Acoustics. Acoustic Panels and Bass Traps.

[psykostx]

Originally Posted by Glenn Kuras

Proper diffusion is more then just random books (which could actually absorb) and not so sure about the painting thing. See the following.
How Diffusion Works. GIK Acoustics. Acoustic Panels and Bass Traps.

Yes books absorb too. But the leather ones diffuse HF flutter nicely. As for mids and lows... now you're talking some math and a weekend in the woodshop. If he's considering pyramid foam, I would say books are a good option, and not just for diffusion purposes

[Glenn Kuras]

Originally Posted by psykostx

Yes books absorb too. But the leather ones diffuse HF flutter nicely. As for mids and lows... now you're talking some math and a weekend in the woodshop. If he's considering pyramid foam, I would say books are a good option, and not just for diffusion purposes

I would say books might be better then a bare wall but I still would test to see what is going on. And yes the math does matter a lot when it comes to diffusion.