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Old 31st May 2011   #16
tun
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Joined: Dec 2009
Location: Bangkok
Posts: 173

Quote:
Originally Posted by Northward View Post
You will find the data you're looking for on their german website. It's all there, lab measurements etc for 40mm thick Flex CL.

We have measurements for 100mm Flex CL, but they are not public because privately funded.

The product is amazing.
Guys, inspired by the Amsterdam studio build and Northward's comments, I'm considering FlexCL to treat my back wall in the manner recommended by him. However, I can only get the 30mm thickness here, and the dealer says it's more like 25mm thick than 30mm.

So, I'm considering 6 traps, each containing 7 panels of FlexCL to give me a thickness of just under 18cm. There'll be an air gap of around 18cm between the absorbent material and the wall. 6 traps will just about do my entire back wall.

My questions are as follows:

Will multiple layers of a thin panel (7 x 25mm) give the same amount of absorption as using 1 x 18cm thick panel? Are the FlexCL flow resistivity figures uniform throughout the product range and various thicknesses?

Also, I'm looking to absorb as deep as possible into the bass freq's, but is layering 7 x 25mm panels excessive? Could I get away with 6 layers or even 5 layers? Or would that mean less low freq absorption? I've read Northwards comments that 12cm to 15cm would be sufficient for 1st reflection points, but also noted that the Amsterdam build utilises 18cm thickness for the back wall, so that's why I'm planning to use 7 x 25mm panels.

Finally, the price over here for 42 x 25mm FlexCL panels (including vat and delivery) will be the equivalent of €263 / US$379 / £229. That's a lot of money. Is FlexCL really that good as Northward suggests? Should I go for it? Or should I look for an equally suitable but cheaper solution?

All input greatly appreciated!

Cheers
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