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Difference b/w RPG Skyline and GIK QRD diffusors

Hi,
What is the difference b/w these two products in acoustical terms. They seem to be of a different design, but supposed to achieve the same acoust. effect (diffusion).
What should one expect to actually hear in the room with one product in place, vs. the other?
Rives Audio specified design with 6 RPG Skylines on the front wall for my basement, which is $2400. And I'm wondering if GIK QRD panels will offer comparable performance for significantly less money ($258 for two 2'x 4' panels).
maril555
rhljazz
1,117 posts
 
Here's another alternative for you. The Alphasorb panel from www.acousticalsolutions.com. As I recall they are about 470.00 per pair delivered. These panels are not as visually challenged as other diffusors.

I can't comment on how they would compare with your other contenders. I will say that these are very powerful tools and 2 or 3 on the wall makes a profound difference. It is easy to over do it in a room my size. I own 4 panels and with my current setup only use 2 on my back wall.
moonguy
143 posts
 

GIK also has the D1 diffuser as well which would be a less costly option as well.
elizabeth
6,726 posts
 
I was interested in the design of the skylines a few years ago. The actual mathematics is interesting and the design is NOT patentable.
Make your own for next to nothing compared to the overpriced panels made by them. The mathematical series is findable and translatable into a panel for the heights of the individual square pegs. Curiously, a BETTER idea is to have the squares in a variety of diameters, but that is just my notion, and the idea does not have any mathematical basis that I could locate. actually any shape will do, so rods can be just as effective.
Use the picture of the item and guesstimate the sizes and it WILL be 99% as effective. The lengths of the rods are a varying matematical equation, and the 'made' panels are just one of billions-plus of possible (equally good) particular height/shapes. So go for the home made ones, and hopefully RPG will learn not to sell very overpriced stuff. (The actual idea is NOT thiers anyway)
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