Does the wall affect the sound that much when I don't sit right in front of it?
I don't know what is up with the soundcard, but it is a Creative XtremeMusic soundcard. I think it might be some leakage between the in and output jack. No kind of loopback has been turned on by me, and I have turned off all equalization and similar effects.
When it comes to placing the TV and stereo diagonally in the corner where the right speaker stands now, I have tried it before with wariable success. Besides, it is not very practical in mye eyes. (Theres no room for my computer if I arrange the furniture that way).
The window is about 20cm higher than the speaker, so I dont get any trouble from it.
I like it the way it is now, and I think this placement has potential. I've allmost made up my mind; and I think I'll go for superchunks in the three corners. 60x60cm (24x24"), which means a ~85cm diagonal (33/34"). That oughta do something for the sound.
But I'm insecure about what porous material to use. I've been looking at some Rockwool B-plates, and something we have in Norway called GLAVA Plate 40. Both with "40" as "sounddampingfactor".
Would one of those be suited for a superchunk bass absorbent?