Suggestions to match a pair of speakers to Pass Labs XA25?


I upgraded recently from an integrated amp (Musical Fidelity M3i) to a XA25 power amp. I also chose the Pass Labs XP12 pre-amp for good measure - Wow, not the same world! I mostly play LPs (RP3), stream Tidal through Bluesound 2i hooked to a Brooklyn DAC+, and enjoy my old Marantz CD player.
When I bought the M3i 10 years ago or so, I picked a nice pair of PSB Image T6 - They sound great, though a bit bright with the M3I. Hooked to the new Pass Labs setup, they sound much much better... but I feel I'm missing satisfying "sound", stage/image, better definition, that plus that would make me smile broadly.
I've read many reviews, went to the CAF 2019 in the DC area... But I'm stuck about high efficiency speakers: Horn or not? I used to be a DJ with horn speakers to get the crowds go wild, so perhaps Klipsch would do great, but then I read about Zu (Soul Supreme) and I don't know anymore. I'm a firm believer that size matters, so bookshelf speakers are not for me. My budget is 4K-6K, and I believe that should be plenty to upgrade from the PSBs. Getting 3 or 4 pairs home to try out and return them will end up costing me some dollars, so narrowing it down to a couple would be nice. Any suggestions?
trackmoe
1Markr, thanks: I just saw that Tekton released a newer version: the 2-10 SET. Nice review from Guttenberg, and perhaps I'll try them out.
You don't need high efficiency speakers with that amp.  It will drive most speakers out there.  
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The NOLA are huge 
The KOs are only 4’ tall.  They’re 8” taller, 1” wider, and about the same depth as your current speakers.  Hardly huge in my book, but it’s all relative I guess. 
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As almarg uses Daedalus with his Pass, that would be the place I'd look first.
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Golden Ear Speakers, efficient and built in powered bass.  Your Pass amp will be driving just the midrange and tweeters. 
Thank you all, this is very helpful. I really appreciate your input, especially when you explain your reasoning. JospehAudio is high on my list, but they are expensive... The Open-baffle is a good option, but I'd need to listen to them first - I was not subjugated by them at CAF19, or perhaps they were just so expensive. The NOLA are huge (just like the Tri-Art B Series 5) and would not fit in my living room - Very impressive!! I never heard of the Bache Audio Tribeca and they could be a very nice option indeed. And then Tekton of course - I have to think more about that brand. Finally, I find it interesting that there not more kudos for Klipsch Cornwall IV...
I had both a Pass XA25 and a First Watt SIT-3. The XA25 was a great match for my Bache Audio Tribeca’s. Very open and holographic and balanced from top to bottom. Not bright at all. With the Eton woofers the speaker is a 4 ohm load and 93db sensitivity. I actually liked the amps better with my Tribeca’s than my Quad 57s. 
I also used the XA25  with my pair of Audio Physic Tempo Plus speakers. This was also a nice matchup. It’s a warmer sound with pinpoint imaging but can sound a bit flat sounding compared to the Bache’s. 
+1 Spatial Audio M3 Sapphire or LSA-20 if you’re buying new.  If you’re open to used, both the Joseph Audio Perspective and Nola KO2 (both $12k+ MSRP) are available now right around $6k and image/soundstage like crazy.  The T6 is a nice speaker, but these are at another level and your XA25 should be fine to drive either.  Best of luck. 
Lots of reviews on this amp check what speakers the reviewers are listening to and which sound you are looking for. Good luck.
+1 @tvad 

My combination of the XA25 with the Tekton Perfect SET (PS12) speakers are a wonderfully musical combination!
Emerald Physics is blowing out their Open Baffle series. I love love love my KCIIs with factory mods including WireWorld OFC copper in the XOs and to the speaker terminals, plus Clarity cap upgrades to the XOs. The are super efficient and play BIG

There’s only a few pair of each, so...
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That is a low power but high current amp. You should look for higher efficiency speakers. Quite a few folks are enjoying Spendor D7s...
Tri-Art B Series 5.  I have a pair coming this week.
I have read many at prior Axpona shows preferred this to Spatial and Pure Audio Project. Apparently these speakers compare to those in the 10-15k price range.  Tri-Art makes turntables and seems they prefer analog. Sound like it’s right up your alley.
https://www.triartaudio.com/?page_id=3983https://www.dagogo.com/tri-art-audio-series-b-system-review/
Review here. https://www.dagogo.com/tri-art-audio-series-b-system-review/
Would be easier to bring your gear to the audio store to demo. The new Cornwall IV supposed to be really great. Could be the basis for a nice amp collection (300B, Quicksilver monos, Benchmark ultra quiet, etc.)