Back again...
Maybe I come closer to a good concept now... I have read everything over and over and I really hope that I don´t misinterpret something.
Geometry:
First I moved the Speaker a little and redesigned this RFZ Concept. The brick wall is now smaller (height and with) and above the wall there is some space left for more LF absorption (part of the ceiling).
I also planned more LF absorption in the rest of the Room. I will do this with
multi layerd porous absorbers and membrane traps with a HF reflecting surface. The surface (just a random layer from sketchup) in the picture is not the final thing. I will try to do it like my former "hybrid bass trap"
My plan is to create the brick wall first (I really hope it is fine now
) and then I make the suited membrane traps for the right position in the wall after the first measurements. I think this is a quite safe way...
I will also do a quite massive ceiling multi layered bass trap (not planned yet)
Position of the speaker:
-I had a closer look @ ray tracing of the KH420 and I think it looks quite fine. (check?)
-The recommended listening distance (1-3 Meters) to the speaker is also good (check)
-remote electronic kits available (check)
-about 1/3 of the room is the sweet spot + 30cm to target the aiming of the speaker (check)
-60° between left and right speaker (check)
-center of the room for the stereo imaging(check)
-woofer not in the middle (check)
-height of the ears in listening position (check)
-no forward pitch (check)
Ray tracing:
am I missing anything?
decoupling from the wall:
I was thinking about this a long time and I think the "out of the box" was meant like this... I took a layer of Silomer for the first cover of the speaker. then I wrap some wood structure around it to keep it in place...
For the cavity of the speakers i had 2 Ideas...
-Idea one, also Silomer
-Idea two, stiff PU foam, the stuff that looks like yellow bubble gum but is quite hard, and fill the cavity and then cut out the hole for the speaker thing
-put the cover around the speaker and have it flush with the wall
what are our ideas about it? do you think this could be a way to be decoupled from the wall?