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-   -   superchunk / perforated panel in one? (http://www.gearslutz.com/board/bass-traps-acoustic-panels-foam-etc/697414-superchunk-perforated-panel-one.html)

pacealmondo 7th February 2012 08:31 PM

superchunk / perforated panel in one?
 
I have already put floor to ceiling triangular (600mm) velocity bass traps (rockwool) in the corners of my room

I was wondering. Theoretically, if I seal them on the sides and back and add a perforated panel on the front could it increase their efficiency ?

DanDan 7th February 2012 09:17 PM

Tests
 
If they are in corners surely the backs are sealed already?
While some commercial designs appear to have some sort of membrane in front, a GS tested all sorts of cardboard and other fronts for us here.
No measured result.
DD

jwl 8th February 2012 05:12 PM

Just remember that adding a perf panel may (and I stress may) increase efficiency over a certain bandwidth (usually about an octave or two), it will also reduce the bandwidth of overall effectiveness.

The apt analogy is increasing the Q on an EQ.... make sure you know which frequencies you want to target, then make sure you build the perf panel so that it really does target those frequencies.

If it were me I wouldn't bother.....

Glenn Kuras 8th February 2012 07:25 PM

Quote:

Originally Posted by pacealmondo (Post 7537235)
I have already put floor to ceiling triangular (600mm) velocity bass traps (rockwool) in the corners of my room

I was wondering. Theoretically, if I seal them on the sides and back and add a perforated panel on the front could it increase their efficiency ?

Honestly unless you have a deep knowledge of working with something like this I would not do it. What you have is working, I bet, so don't mess up a good thing. If you are trying to retain a bit more upper frequencies in the room then cover the fronts with card stock (heavy paper).

pacealmondo 8th February 2012 08:41 PM

thanks for all of your help



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