By the way, 23’ x 23’ x 8’, square rooms can be problematic, even more reason to use measurements to find advantageous, avoid problematic positioning and toe-in.
I would lower the speakers, tilt them back, aim tweeter up at seated ear height, altering the INITIAL reflections off both the floor and ceiling.
Amazing Bytes CD with Test Tones Info here
only finding two expensive listings on Discogs at the moment. Write me a message, I could help you find an inexpensive copy.
I make an enlarged copy of page 4, use the 29 1/3 octave test tones with the SPL Mic on a tripod at ear level listening position. This combined with the Schiit EQ, use one of the presets for ’measured with mic’ then finally, you use your ears and set another of the presets for personal preference.
If there is a big difference between what the mic hears and you hear, time for a hearing test.
I like this chart