In sell my stuff threads like this I never see what I think is the most amazing single device for sound quality which is a Xilica XP 4080 or equivalent. To take control of all the variables and bring your components up to the highest level they are capable of and correct for room problems too. Of course it requires time to learn and program and software to use with your calibrated mike so you can assess what is really going on. Beats the heck out of try this and try that expensive gizmo until you stumble on something you really like.
I see Mr OP that your listed personal system reflects all that nice tasty expensive gear you are loving on heh heh.
I see Mr OP that your listed personal system reflects all that nice tasty expensive gear you are loving on heh heh.