New speaker suggestion

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.  

+1 Magico A3, -1 Focal Kanta 2

In that range I’d listen to the Audiosolutions Figaro L. They look very substantial and well made. Also, I have a thing for D’Appolito Midranges.
AudioSolutions Figaro L speakers Review - Dagogo

Although the "masses" think they are "bright", My B&W 804D3 have a cavernous soundstage, oodles of detail and have unbelievable dynamic contrast. These are in your range as well. And, unless you have a monster SS amp, do require some subwoofer support.

Magnepan 3.7i's then if you want to spend a little more, Sound Labs 545's
Dipole speakers limit room interaction and these two speakers punch way above their price point. They will open up a whole new world of imaging and articulation missing in dynamic speakers costing many times more. 
Both benefit greatly with subwoofers which you already have. If you use a two way subwoofer crossover the Sound Labs will hit volume levels unheard of from an ESL. The Maggie will play loud but not concert loud.
If you want to blow your doors off these are not your speakers.

Sound Labs for electrostats.
Vandersteen Quatro or Kento for conventional.
The latter have built in subs with equalizers that allow you to tune the room. Yes, I luv my Vandy's.
But, YMMV, so audition, audition, audition...
Bob