Ok, here goes. I know in my mind that these are significant.
http://www.hometheatershack.com/foru...html#post76177
(from a few replies up, my 4 graphs)
Green is where the JBL was in the recent photo on the left side of the TV taken from the couch seat on a tripod.
Red was a mirror image of the previous setup, but on the right side of the TV instead of Left.
Teal was in the corner with the port facing against my kitchen wall. (The corner of the Love seat/kitchen counter/front wall).
Gold was taken in that exact corner as Teal but with the port firing against the front wall.
As you can see, each of those pairs of locations (similar) have different areas of frequency problems. But the first two, each right next to the TV, have problems at 91Hz.
THOSE measurements however were taken with ONLY the subwoofer (JBL) active. These results today had/have problems while the mains are on too.
I dunno..I'm tired and thinking outside my boundaries of qualified subjects to try and troubleshoot.
