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I have heard this very application - FG panels over LENRDs - in two different rooms (one control room and one "booth"), and seen measurements from both. I can vouch for it as being an excellent appro ...

Gentlemen,

I am trying to contemplate how to make all this clearer. What worries me is that some readers here may misinterpret some of this. So, I've decided to break it down into the pros and co ...

> In general, QRDs are poor near field performers. <

I have to say that the listening tests I've done recently show my 6-inch deep QRD diffusors to be not as bad close up as I'd been led to b ...

"how do I best figure out what type of absorbers to use and where". Sabines aren't perfect but at least it gives me something to calculate.
The answer to this - and it may answer some of the stuff be ...

I agree with Jeff that broadband absorption (not bass trapping only) makes sense there. I'm surprised Jeff didn't mention that the "10 foot rule" with diffusion depends entirely on the low frequency l ...

Kevin,

1. What is the desired absorption/T60 decay curve?Is this not as important as I think it is?
I don't feel T60 is very important for small room design. In general, you add enough treatment ...

Just came across this post. You might want to contact people within your own university to look at the problem. Some eager students may welcome the challenge...

Thanks for sharing your opinions, zack.

FYI:

• According to Auralex, SheetBlok has a STC rating of 27hereabsorptive effect this adds can be beneficial in many cases.

I would also like to add ...

Max,

Since this is the Auralex group, I would encourage you to contact the mod, Gavin. He has tools at his disposal that will allow him to guesstimate the isolation you'll get, as well as what the ...

Max,

What Philip Newell is fond of - and how Auralex suggests their SheetBlok be used - is called "constrained layer damping" or "CLD." Mass-loaded vinyl (MLV) is one of the most economical materia ...

dpd,

I will be posting a Sticky soon with information about the new pArtScience product line. To answer your questions, both the SpaceArray and SpaceCoupler should begin shipping this week. The pri ...

Anyhow I have a few basic questions about planning my installation, is it appropriate to ask them here?
By all means, ask away! Smile

David,

Glenn will have to help you with #1. But for #2, spacing any thick absorber (of the 2'x4' variety, which is quite common) away from a wall will continually improve the low frequency absorpti ...

Glenn,

My last e-mail to you bounced back to me. Something about an irrelevant address. I just hit 'Reply'??? Can you PM me?

David,

Looking at your sketches, I would say that either solution will work. The acoustical result will be more or less the same. You will get more off-axis absorption from the MAX-Wall than from t ...