Does such a cable exist- sweet, lush, detailed & dynamic?

You forgot to mention 5) ”affordable”

Your wishlist seems like a component change vs a cable 

Awesome system @zavato ! Congrats. 
 

I used to have Pass X250.5, then XA30.8 and X260.8. Preamps were XP-12 and XP22. I also owned Bricasti M3. So somewhat familiar with what you’re experiencing sound wise. 
Getting back to your question - I see you are using Ohno Continuous Cast (OCC) Copper cables Interconnects and speaker cables. I assume these are Audience cables?

I’ve not had good luck with these. I owned Ohno RCA and XLR cables. I think you can do much better. And not at much higher price. I’d focus on speaker cables first. I really like Audience FrontRow but before the FR I had the AU24SX and they were awesome. Not as extended and refined as the FR but not too far behind. 

I use Nordost Tyr 2 interconnects and it’s a nice balance with the Audience sp cables. This combo should work great with Pass gear. 

@soix - very familiar with the AZ Matrix- my balanced interconnects are AZ Matrix- and yes, there are quite nice.  

@audphile1 - most of my OCC cables are from Acoustic Zen. I tried the AU24 and have a set of Ohno’s, and I sold there AU24 and think the Ohno’s are OK, not great. And thank you- my system is definitely excellent 

@kennyc Affordable is a plus- but I left that out as different people have different ideas of what affordable means. 

Thanks everyone!

Sorry didn’t look at your system first (my bad) and you’re probably running XLR interconnects.  Maybe look at Kubala-Sosna Emotion or Elation interconnects if they’re in your budget.  Also Snake River Audio I think leans a little to the warmer side yet still nicely detailed, and they sell direct and offer a return option, which is nice.  Just a couple other ideas FWIW, and best of luck. 

Old AU24 and new AU24SX speaker cables are completely different. 
Try Nordost Tyr 2 XLR cables. They may match with AZ speaker cables. To me AZ are very warm sounding and using them with Pass gear might sound too wooly. But it’s what you like ultimately. Enjoy!