Nice graph! Any DSP?
No, that's without filters. With Dirac it helped the bass smooth out. Can't remember if it was Floyd Toole who said below 500hz it's the room in control above it's the speaker. I try to do very little above 500hz maybe a house curve if the top end goes up. Right now with my Dutch and Dutch 8c I'm using no filters and no curve, nice smooth plot from 24hz to 20khz one small room mode at 60hz. I have two absorption panels 2'x4' in a 20' x 14' living room. I'm hoping to do some measurements this weekend again see if I want to change anything. IMO some people overdo treatments and overthink their gear. I understand how tweaking and a lot of different components could be fun to play around with but for me simplicity is the goal.