Many great suggestions already made
I tend to agree that if you're thinking EQ is the answer then your problem is in the electronics food chain not the speakers
A speaker that I have not seen mentioned as an upgrade path is Texton
While a polarizing subject on this forum, my personal experience has been exceptional
Perform above their price point, sound is organic, and I understand matches up well with McIntosh
I do not know the proper technical terms and jargon, but in my system in my room with my music and my ears, to me it sounds like a person is singing to me and instruments are being played for me
Granted they're big and boxy and need room to get away from the wall
But for 6k one can get a significant amount of price performance with Texton
All the best and enjoy the journey