Double bass array. Low Q subs. [Quasi]plain wave radiation?

[Flaesh]

Where is your crossover set to the subs

IIRC a little lower 90 Hz. Speakers delayed up to smooth PET.

ringing is the same?

Not completely. Initial decay improved, while tuning is unperfect, while decay before wasn't very bad. IMO\IME improving initial decay is audible in general case, while tails, say below 20 dB, [may] remains in real world.
It is also obvious that the delay is excessive in the old picture.

 

[Flaesh]

Room may be called untreated. A little bit of polyester is lying around.