I have the hx300 amps. I turn the crossover point on the hx300 as high as it will go which is about 200 and then do all the crossover in the xilica. The speakers are 8ft off the front wall and 9 ft apart. I am 9 ft from the speakers. The closest side wall is the left wall and it is 9 ft away from the left speaker. The wall behind me is 10ft away from me. My setup is kinda messy right now till i can strighten out the wires. The amps and dac what not will remain on the floor though to keep out of the imaging

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Part of the problem is the amps. The HX-300 does not have anywhere near the adjustibility of the A370 series amps.
Another issue is positioning. Woth OB you want the speakers to be closer to each other than to you. Also, the closer the speakers are to each other, the more midbass coupling you will get. This is a balancing act because the farther apart the speakers are, the larger the soundstage. You are looking for the position where the speakers are closer together than they are to you but as far apart as possible without diminishing the midbass.
Try positioning your main speakers 6ft apart Instead of 9, then start moving them away from each other about 6” at a time until the midbass starts dropping off.