Need help determining next upgrade - 3rd ATTEMPT

Wolf-Garcia, as usual, has told you like it is .
I've been listening to speakers for fifty + years, 98.9 % of the time a smeared or "washed" out sound on massed strings in a symphony is traceable to a cheap crossover .
Cheapest brands I know about that don't use them are Silverline and Totem.I suspect Focal doesn't as well, I know my Focal Titus 202 monitors don't smear.

Another vote for room treatment. I was very surprised at the improved resolution room treatment provided. I would put acoustic panels ahead of any new equipment purchase and even ahead of optimizing speaker placement since acoustic panels could well alter your optimum speaker placement. I called GIK Acoustics and also emailed them a diagram of my room. Their technical people were very helpful. I ended up buying 2 corner soffits, 2 bass traps (for wall behind speakers) and 4 regular acoustic panels for side walls. These made a very enjoyable difference. Good luck to you.

So most comments seem to be angling toward speakers, room treatments and speaker positioning. The room is 12x12x8, so not very large, and square in plan. The guy that treated the Odyssey room at last years RMAF pretty much demanded that I coat the rear wall of the room with sound absorbtion, more important than side reflection in his opinion.
I really thought someone out there would say "AMP!" but that hasn't happened, very interesting.
Schubert what defines a cheap crossover? Don't know much about them.

Description of the 22L2's crossover from the TechRadar review:
"Fed from twin terminal pairs, the crossover unit has a glass-fibre circuit board with large, non-interlacing tracks. Components (mounted to avoid magnetic inter-modulation) include air-cored inductors and metalised polypropylene low-loss capacitors, and the internal wiring uses heavy-gauge oxygen-free copper."

I am for the most part in agreement that speakers are most frequently the primary cause of smearing. Next most likely, in my opinion, is the preamp, but that is just based on my personal experience.