Moved studio monitors from corners to ~30% the length of the side walls closer. They are near the sidewalls, per Genelec recommending keeping them closer, or if there is space making sure they are more than 1.1 meters from the wall. this follows the first rule for the side walls, and the second rule for the front wall.
No treatment yet, looking at putting up two or three layers of acoustic blankets on the back walls, and getting 6" absorbers at the first reflection points with scatter plates on one side. hopefully this helps. Very satisfied with the bass response crossing over lower and putting the subwoofer really close behind the seating area.
Prior setup had a deeper null on each speaker in the bass region around 80hz or so. That is gone now, but there are dips I'm worried about shown below, espeically around 5k and between 1k and 1.15k that are nearly 5dB down. The soundstage is much better though after moving them forward compared to having them angled in and back in the corners.
No treatment yet, looking at putting up two or three layers of acoustic blankets on the back walls, and getting 6" absorbers at the first reflection points with scatter plates on one side. hopefully this helps. Very satisfied with the bass response crossing over lower and putting the subwoofer really close behind the seating area.
Prior setup had a deeper null on each speaker in the bass region around 80hz or so. That is gone now, but there are dips I'm worried about shown below, espeically around 5k and between 1k and 1.15k that are nearly 5dB down. The soundstage is much better though after moving them forward compared to having them angled in and back in the corners.