Standmount speaker suggestion

I think the three you’ve focused on are all excellent and think you’ll get significant improvements and be very happy with any of them.  Keep us posted. 

Many are recommending Pulsars. What kind of sound do they produce? Or better asked, what would the Pass + Pulsar produce?

They are neutral and very natural sounding where nothing in particular sticks out and everything is very refined and balanced. They provide more bass than you’d think given their size with an expressive midrange, and their imaging, 3D soundstage, and ability to disappear as a sound source are among the best. As they’re very transparent and pretty much a blank canvass, sonically I’d expect them to pass through the natural warmth and musicality you probably value with your amp without adding anything of its own while allowing all your amp’s other formidable capabilities to shine to their fullest. There’s a reason the Pulsars are so highly regarded. Incidentally, although the Graphene version does seem to offer some marginal improvements they’re nowhere near as significant as with the Perspectives (and some even seem to prefer the original Pulsars), so if I’m you I’d happily buy the original version knowing you’re not missing much if anything and save $$$ — you should be able to find a nice pair in the $3500 - $4000 range.  Hope this helps.

Joseph Audio Pulsars should definitely be on your list.  Best of luck.