| The 17x 15 "internal" dimension will still depend on the height, and shape of the ceiling [back when we were still designing control rooms, we came up with a ceiling that started as an 'expansion ceiling' but turned into a compression ceiling... it really worked well!!].
What John said about rear wall trapping is [of course] spot on... but, given a limited amount of space, and a good "outershell" ceiling dimension, you can port the top of the rear wall [behind the diffusion] and add additional trapping in the ceiling... then open or close the ports until the desired amount of trapping is attained. It's a bit cumbersome, but tunable, and will make up for lack of outer shell rear depth.
The outter shell will determine your modal problems from around 250-300Hz down... the inner shell can be "tuned" to deal with problems 300Hz and up.
In this case... it really kinda is rocket science.
__________________ CN Fletcher Professional Affiliations: R/E/P Professional Recording Engineer and Producer forums - serious hobbyists welcome TELEFUNKEN Elektroakustik SoundPure.com mwagener wrote on Sat, 11 September 2004 14:33
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