Looking for Advice on Focal Speakers

@cd84 nailed it in the first response.  @suboost you can buy just a pre but what i've seen is for basically the same money you can acquire a high quality integrated instead.  Parasound, Anthem, NAD or even Marantz the possibilities are endless.  

If you are a car guy at all you know you can't just drop a giant turbo into a car without changing the fuel system, tune, exhaust etc.  What many of us are suggesting is the Kanta by itself would be the equivalent behavior.  Good luck, it's fun and you have me rethinking doing some listening sessions at my dealers in area this fall.  

I owned the Aria 936's for about 9 months and never warned up to them. I always felt the tweeter was disconnected from the rest of the drivers and they didn't disperse evenly and together. I moved up to the Electra 1028 and absolutely loved them. I considered the Kanta but got a better deal on the Electras. I would go back to the Electras in a heartbeat much better speaker. The prices for the 936 are getting out of hand. I got a deal on the 936 brand new for under $3k just two years ago. You might find better value elsewhere. 

I bought a pair of used Aria 936’s and run them with a PrimaLuna HP integrated and am consistently thrilled with their SQ. The PL has no issue with impedance load in Ultralinear (70w) or triode (40w as I recall).

If they are within your budget I think you will be quite happy for many years as you continue to upgrade your system. Unless the additional cost of the Kantas are of no consequence, I think the Aria’s will be hard to beat. Financial strain is no fun these days. Choose wisely.

I would not buy the Kanta without listening to them first. I love my Focal 1007 Be standmount speakers, so much so that I bought them back from the friend I sold them to.  I have listened to the Kanta 2 with ARC (Audio Research) gear, and was underwhelmed. Maybe it was the ARC gear that was too solid state or cold sounding to me, but I remember wondering where the bass was at. Quite anemic in this regard. You would likely want to buy 2 subs.  Sopras are amazing, would likely be an end game speaker for me. I think used Focal 1028 Be would be a great buy, and something that would show improvement with nicer electronics down the road if you choose to upgrade. My 2 cents 

The 936 don't have beryllium tweeters.  I know because I had a pair and had to replace the tweeters.  Damage was from user stupidity, not a problem with delicate tweeters.  Anyhow, they are powerful sounding speakers that are very dynamic.  I moved on to something else, but if you like the sound I recommend them.  I've never heard the Kanta line.