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Thanks for detailing your system, and that helps a lot.  And yes, as someone who recently posted their system A’gon definitely does not make it easy and should be made easier.  It’d also help if you could specify more what improvements you’re looking for.  You’ve got some nice equipment, and at this level it really comes down more to personal preferences, so sharing what you’re looking for becomes more important.  Just saying general things like I want “better” or “the best” doesn’t give much direction in making helpful recommendations.  The more info you provide here the better and more targeted recommendations you’ll get.  

I’m not familiar with Wireworld interconnects and not sure what speaker cables you’re using, but I’d experiment with buying some used Acoustic Zen interconnects and speaker cables as, in my experience, they excel in the qualities you seem to be looking for and if they don’t work out you can just turn around and sell them for little or no loss.  To me, they preserve detail along with the “meat on the bones” in the critical midrange while also being excellent at 3D imaging and soundstage.  They may provide the extra oomph you seem to be searching for and at very little risk if buying used.  Hope this helps, and best of luck. 

Ah, yet another unsolicited and shameless self-promotion post from one of our most treasured participants.  Ehem.