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Proper Room Acoustics/Designs

I have the chance to build, from ground-up, a new listening room. I have spoken with Dennis Foley and have learned much, concerning the proper room dimensions, as well as room designs. Instead of adding room treatment devices to deal with room nodes etc, I will be constructing a great room from the beginning. Has anyone had any experience with him directly or indirectly? BTW-I started with the Analog forum, because there is no forum, that I know of, that deals with listening rooms. Any suggestions?
handymann
bdp24's avatar
bdp24
9,821 posts
 
Is Dennis' room dimensions recommendation in the 1.0 X 1.6 X 2.6 ratio?
handymann OP
383 posts
 
Actually 1:1.6:2.33, but those can vary, depending on the size of your low frequency drivers. He advocates building a room inside a room, with all 6 parameters to be 12 inches deep (front, back, sides, floor and ceiling). He then builds Carbon filters/diffusers as well as absorption devices in the walls. It will be an ambitious project, but if I can get it right, it will be well worth the money. For the first time, I will be able to hear ALL of the notes attack, as well as decay. I have so much energy in my room right now, with 2 JL Fathom 13 subs turned on at low levels and low roll-off points it sounds muddy. All these years, I've been utilizing tube traps etc, to try to clean up my room to no avail. He has some interesting Youtube videos you may want to check out.
bdp24's avatar
bdp24
9,821 posts
 
I'll look Foley up. J. Gordon Holt specified that 1:1.6:2.3 ratio long ago, which I took as Gospel for years. Then everyone (Cardas, etc.) starting recommending 2.6 for the last figure. 2.3 seems better to me, being a prime number. I would gladly take either, but if you're building you get to choose.
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