Where Do I Go from Here?

What I would like to achieve is a little greater 3-dimensionality, a little greater accuracy in those faint sounds (such as a gently struck triangle at the back of the orchestra, better definition of singers in a massed chorus (e.g., Carmina Burana or Ode to Joy), etc. -- all while maintaining the wonderful musicality I now enjoy.
 

The first speaker that came to mind is the Joseph Audio Pearl or maybe even the Perspective 2 for about half the price if you’re also using subs for 2 channel.  Other speakers I’ve heard that do very well producing a 3D soundstage are ProAc, Wilson, Vandersteen, and Usher.  Rockport can do this too, but with your amps and considering your current speakers I’d be a little concerned they might be a little too polite up top, but that’s just a guess.  I also thought the Magico Q7s I heard were great but didn’t have quite the musicality/emotion the others generated — maybe just a little too clinical for me.  But given what you’re looking for the JA Pearls would be atop my list and are true end-game speakers IMO and certainly worth a trip to go out of your way to hear.  Best of luck!

@jmeyers  
I have been to PS audio twice to hear the FR 30s. I was underwhelmed each time. Maybe it was the room. They are very detailed though. Too much for my tastes. The cabinet construction of the Rockports is vastly superior as well. My top three choices would be Rockport , Vimburg and Joseph Audio pearls. Let us know what you decided to go with. 

I understand your desire to upgrade, that is a big part of the fun of this hobby, but I am curious as to why you are so steadfast on not replacing any other components, only the speakers. Your system should be a synergy of the individual parts.

I’d rethink as to why you want to change up what amounts to the largest and most difficult component to home audition and physically install.

Your digital sources are top class, your analog source is decent but if you do listen to a lot of vinyl, a cartridge upgrade would be relatively inexpensive, easy, and very cost effective. I did own the Hana SL for a while. Lovely for the money but there are much better choices if you go up the food chain.

Finally, regarding your amplification. I personally have never been truly happy with my system unless I am using tubes for amplification and perhaps you might want to consider that. That dimensionality you are looking for, in my experience, can best be created with tubes. You could buy 2 monoblock tubes amps for the left and right for your music listening and keep one of the Macs for you center channel when you do Video.

Should you decide to go that route, you could buy used and if not to your liking, easy to resell and ship out.

Your speakers are considered to be very good. Changing them out might provide a different sonic perspective, but perhaps a sideways move with considerable inconvenience.

Good luck and hope I didn't open up a can of worms!

As a 77 year old my advice is to simplify, simplify, simplify. Your wife/heirs have no idea what you have and will trash your system.

You can still enjoy a simpler system.