Right, too dead is not good ! I once was in an EMI Studio(MarwegStudios) here in Cologne/Germany where they do the vinyls 'n' stuff and the room was totally dead, which is a feelin of " Please, let me out of here as soon as possible"Aren't you worried if it's going to be too dead if there's absorbers almost everywhere? (that's what I understood from your description). Or maybe there isn't foam to the back of you and only a bit in the ceiling ? (better solution IMO)
Our floor is carpet, the walls are mostly filled with absorbers , the left wall is mostly filled with special shelves desinged to work as diffusors , the back is the rack-wall with all of the outboard equipment and the ceiling has only a few absorbers wich can be placed where ever
they're in need ( especially on top of the mixing-desk)
I did no filter testing because first it's very expensive and second i think the most important thing is to feel comfortable in your control-room!
I checked loads of big productions in the room to hear the strenght and the weakness of it (for example the latest R.KELLY Longplay!)
In the early stage of designing the room we had loads of trouble with standing walls, but since we've installed the basstraps in the right corner the problems are gone
And since i only do vocal and some guitar recordings, the recording room was designed to be almost dead , but still there's enough live in it
as i said .. as soon as we are totally finished the images will be taken and then they'll go online !!