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DIY QRD diffuser - pictures
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Old 7th February 2013   #1
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DIY QRD diffuser - pictures

Hi I have some pictures of QRD diffuser I build using 8mm OSB board - very cheap

It's double Q11 diffuser
Dimensions 1000 mm x 1220 mm x 170 mm

Weight about 30 kilos

Material cost (including cutting at local wood supplier) ~ 30 Euro

Making time about 8 hours - one diffuser


















and finally... two diffusers ready to work in my studio

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Old 7th February 2013   #2
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Old 7th February 2013   #3
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This is a beta version of diffuser
I wanted to know if I'am able to build it myself.
After some rehearsal of the sound reflected from this diffuser vs plain wall..
There's no way back... I will make more of them.
I would like to cover entire wall behind my mixing position.

So my question is:
How to calculate best QRD design frequency for my room.
Should design frequency be connected with my room dimension modes?
Or is it ok to improvise here with the design?

cheers

milosh
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Old 4th April 2013   #4
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wow great diffuser.. post more pictures dude..
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Old 4th April 2013   #5
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One thing you where smart to do was to not put the last frame piece on until the end. When cutting by hand it is almost impossible to cut all the pieces 100% correct and have them fit without gaps. Gaps are a bad thing. When we build ours we use a C&C to cut all wood and grooves for it to fit. Basically good job for building by hand.
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Built in Slat design (Scattering/Diffusion) on all Bass Traps click here
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