Originally Posted by Rairun
Btw, how did that big dip at 80hz happen?
thats a good question. i am curious about that as well...
Notice at, hard to read.....say 120hz you have a peak for the untreated. Then the null at 80hz in after treated. They look like opposites of each other...very similar.
Fixing one problem can cause another surface. Since modes happen in multiples. Thats all i can tell you though.....as this is a subject im not well versed on.....
I assume these graphs are with both speakers firing? Run sweeps with one speaker at a time, and post graphs of left and right.
Also, looking at your room....you have a lot of absorption going on there. Looks like it would be a fairly dead room.
But, to me it appears you have too many panels on the walls, and not enough bass traps.
You should surgically treat first reflection points by using the ETC...and i think you would find that you dont need so many first reflection panels.