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Originally Posted by terry j  Hi lupo, and happy ostkaka day. Re the omdiffusor (tm)...normal businesses have the omnidiffusor, we are better than that...would it not make more sense to overlap (in your example) 500 hz downwards rather than above? |
It's hard to get more than half to 1 octave below 500 Hz with a practical build depth. Going down from 500 would give a diffuser with, at most, 1 octave range.
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Originally Posted by terry j I did mention to someone that you take breaks every now and then, I said it was because you obviously had a life. That was wrong, per you you are trying to get a life! 
Good luck with the gigs and let us know how they go. |
Hehe.. Did do a bit of soldering too while I was in the capitol. It takes a lot to give a nerd a life. :D The gigs went very well! Have lifted the live acts to a new level. Many happy people!
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Originally Posted by terry j NOW you mention using qrd wells to extend the effectiveness of a bass trap, you waited till you saw I was committed to the space coupler didn't you! |
Well, it's a huge subject! It involves calculations of various impedances, especially important for the covering of the QRD trap. There's also optimizations for the well arrangement that makes it more effective at absorption than a normal QRD sequence. Both of which is beyond my meager math skills at the moment. Unfortunately!
I'm sure the traps you do will work fine as is.
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Originally Posted by Xenon "The large number QRD's need a longer distance to the listening position for all the waves in the diffuser to blend."
Can anyone clarify this point? |
What I meant is that you want to be in the far field of the entire sequence. A 2 meter wide sequence needs longer listening distance than a shorter sequence.
PS: Congrats on the build! Looks very good.
Cheers,
Andreas