Post by: Chris Griffith on June 16, 2009, 02:27:00 AM
They don't seem like they'd be hard to make a bunch of for a tracking room.
Post by: Thomas Jouanjean on June 16, 2009, 09:34:00 AM
Though RPG did design this:
http://www.rpginc.com/products/flatffusor/index.htm
Never tried those, but maybe someone on the forum has? Francis?
Post by: Chris Griffith on June 16, 2009, 11:20:36 AM
Seems like they've designed a lot of high end studios and they would know what they're talking about, but those panels don't look like they could be that effective.
Post by: Thomas Jouanjean on June 16, 2009, 11:42:34 AM
Still, hard to say...
Anyone?
Post by: franman on June 18, 2009, 10:10:47 PM
The RA Stuff.... I really don't see how these are diffusors.... Ports to Bass traps... I could see that... but diffusors???
FM
Post by: Thomas Jouanjean on June 19, 2009, 05:48:11 AM
| franman wrote on Thu, 18 June 2009 21:10 |
I really don't see how these are diffusors.... Ports to Bass traps... I could see that... but diffusors??? FM |
+1
Post by: Wes Lachot on June 19, 2009, 11:43:13 AM
We use the RPG BAD panels all the time. They have excellent low frequency absorption, as well as mid/ high end diffusion. If you talk into one, and compare to an apsorptive panel, the difference is pretty profound. They leave a lot of high end intact, and that really helps when it's so easy to over-deaden a room.
-Wes
Post by: Thomas Jouanjean on June 19, 2009, 12:49:10 PM
| Wes Lachot wrote on Fri, 19 June 2009 10:43 |
Thomas, We use the RPG BAD panels all the time. They have excellent low frequency absorption, as well as mid/ high end diffusion. If you talk into one, and compare to an apsorptive panel, the difference is pretty profound. They leave a lot of high end intact, and that really helps when it's so easy to over-deaden a room. -Wes |
Thanks Wes.
As in all the designs I do all the panels and systems are custom designed and built, I never work with RPG (or any other "brand" for that matter). When the opportunity/conditions arise, I will for sure try those BAD panels.
Post by: Wes Lachot on June 19, 2009, 07:11:32 PM
| Thomas Jouanjean wrote on Fri, 19 June 2009 12:49 | ||
Thanks Wes. As in all the designs I do all the panels and systems are custom designed and built, I never work with RPG (or any other "brand" for that matter). When the opportunity/conditions arise, I will for sure try those BAD panels. |
And you've done some very nice looking work. Kudos for designing all of your custom diffusors yourself.
As for RPG, they are really different from others brands, in my opinion. They do have a wide variety of off the shelf products, but they are also in to doing custom designs for specific projects, or altering existing designs for a unique application. By working with them we tap into a vast knowledge base and some of the brightest minds in the business.
Plus, RPG has recently aquired a really cool 3D printer, that can print objects! So, if you come up with a diffusor shape that you want to test, they can print that sucker out (in miniature of course), and take it to the lab for testing. And they do have a nice test facility as well.
-Wes
Post by: Chris Griffith on June 19, 2009, 11:36:09 PM
Post by: Wes Lachot on June 20, 2009, 12:49:40 PM
| Chris Griffith wrote on Fri, 19 June 2009 23:36 |
Do BAD panels stop flutter when mounted parallel to another wall or do they need to be mounted at an angle? |
Yes, BAD panels are very effective in treating flutter echos.
-Wes
Post by: mike chafee on June 21, 2009, 10:03:23 AM
A great result.
Mike Chafee
Post by: andrebrito on June 22, 2009, 12:37:26 PM
I have used and sold thes BAD panels and they work but are much more than the pictures on the first site who appear only to be perforated panels.
Post by: franman on June 25, 2009, 09:14:55 PM
I've used as well quite a bit... but they are perforated panels in front of Fiberglass (at least from RPG)... what 'more' are the devices you have used?? Mind you, the perforation is a binary array.. thus the name, but it is a 'perforated panel'... please elaborate.. thanks.
FM
Post by: andrebrito on June 25, 2009, 10:05:15 PM
What I meant was that the BAD panels are much more than just ordinary perforated panels as shown in the pictures on the first post.
I have used RPG ABSORSOR, BAD PANEL, MODEX, QRDs and the lower PROFOAM and PROCORNER for small home studios.
Post by: franman on June 28, 2009, 09:52:13 AM
Post by: spm_gl on July 04, 2009, 09:58:27 AM
Mind you, I'm a lowly audio engineer, they probably know more physics than I do.
Edit: It looks like they do...
"The absorption characteristics of the perforated panels vary depending on the distance they are supported away from a solid boundary. The closer to the boundary, the lower the overall absorption at higher frequencies."
Edit: A bit of research gave me this: http://www.hunecke.de/en/knowledge/diffusors/phase-grids.htm l
Post by: Thomas Jouanjean on July 04, 2009, 01:34:48 PM