New speaker suggestion

Nice electronics. 
I personally like the Sonus Faber Olympica Nova 3 in that price range. They are a good all around speaker that looks as good as it sounds. I liked them much better than the Kef reference 3. 
Used a pair of wilsons (really any of them will be a huge upgrade) and or a pair of Focal Sopra 2 would be high on my list of used purchases in the $10-$12k range. 

Consider a speaker and amplifier purchase as a single purchase / decision.

Be open to moving away from your Pass amp should your speaker choice necessitate it. Conversely, staying with your specific Pass amplifier locks you into a (restricted) subset of speaker types.

Please note that the above is not about Pass. I own a Pass XA 30.8 and a XP 20

All the best in your search and choice.

been reading PSAudio's Paul McGowen's book 'unlocking the secrets to great sound', I like how he lays out speaker choosing....
"'Because loudspeakers sound and perform so differently, they must be chosen to their environment (the room) as well as our tastes'".

I recently purchased Magico A3's based on my room and my tastes, funny when I auditioned amps at the dealer, they had the A3's in a 40x40 room, pulled out 15' from the back wall and 15' from the side walls... who the hey has a room like that? And this is a high end well respected dealer.

I'd add to Paul's advise to consider your electronics a bit when choosing unless that's up for change too.
Good luck, this speaker journey was fun for me and I'm very happy with my choice.

I think Pass would be a good match for paradigm. I think a pair of persona 7f would impress.

For speakers, I would check out the Focal Kanta 2s as they would be a good match with your pass gear.  They are very detailed and I very much like the soundstage they deliver.

the Magico A3s ought to be in that price range and could be interesting.  Again, good match with Pass.  

There are a million other options.  These two are great sounding and would have good resale eventually.  
You might also find stepping up your cartridge and DAC.  It would add something to your system.  A Chord TT2 for DAC if you like the more forward Chord Sound.  Rockna’s Wavelight would be brilliant for a more natural sounding DAC.  
For cartridge, an Ortofon Cadenza Bronze would deliver more in terms of detail and soundstage.  Even a Lyra Delos would be a nice option.  
Good luck to you.  Full disclosure, I am a Focal, Chord, Ortofon and Lyra dealer.  I have no affiliation with Magico or Rockna.