Page 1 of 1

Absorption behind nearfields?

Posted: Thu Dec 04, 2003 5:58 am
by dymaxian
Greetings! Sorry if I'm asking an old question, but my search of the forum came up with nothing... if there's an old thread with an answer in it for me, please point it out. :D

Anyway, I'm wondering how much HF absorption I should put on the front wall of the control room. I'll be using free-standing HR824s, and the folks at Mackie recommend that the optimal place to set them is 24" from any wall. Should be easy enough.

I have seen a bunch of layouts from Knightfly and John suggested here that recommend a lot of HF absorption behind nearfields (almost every layout shows a lot of LF absorption there, so that'll be easy enough) ; would it be better to try to absorb full-range on the front of the room? With a little time and an interestingly shaped front wall, I think I can create a RFZ at the mix position, even with the speakers out away from the wall. It'd certainly be easier to absorb the HF on the front wall, but will it sound better? Or will that deaden the room too much? If the majority of the HF sound is coming out of the front of the speakers, and going where it's supposed to, should I even worry about it? If the point of the RFZ is to keep HF reflections from getting to me at the mix position, and I'll be absorbing them on the back wall, why not just absorb it all up at the front?

Questions, questions, questions... and too many acronyms!

I work as an architect, so I've got all kinds of time and energy to put into the design. :wink: And I'll be doing a lot of the interior carpentry myself, so the goofy design won't aggrivate anyone else but myself...

Thanks in advance!

Kase
www.minemusic.net

Posted: Thu Dec 04, 2003 6:36 am
by knightfly
Kase, for some reason Barefoot put this in the Acoustics forum instead of the Speaker forum - hope this helps, at least it's fun to play with -

http://www.johnlsayers.com/phpBB2/viewtopic.php?t=630

Enjoy... Steve