Sat eating lunch after leaving canjam, I managed to try everything I wanted to and most things matched with my expectations.
Fiio:
K15/k17 - not as physically large as expected but very beautiful design and great screen, the touch interface works well. 5 gain modes seems excessive though. When running the ft1 pro on the top gain setting the k15 was at 60%, when advertising 3w of power something seemsoff.
K13 r2r - fixes all issues i had with the k11 r2r sound, soundstage is now how it should be etc, I compared them side by side for a while. It's physically much larger aswell.
Ft1 pro - bought these and returned them despite liking them previously, listening at the show with everything else there just reinforced how good they are.
Their little retro snowsky dap is just ewaste nostalgia bait, control are fiddly, it feels cheap and tatty and the display is crap. Worse than just using my phone in ever way possible.
Hifiman
Listened to the entire range they had, really confirmed for me that their current sound signature is just slightly too harsh, I don't find vocals sound natural. The arya organic were less harsh than the standard arya but it was only slight.
The new he600 and edition xv were both very good and I think more natural sounding, my preference out of their entire modern range was the he600 however the round ear cups were too small for my ears and not overly comfortable.
Dan clark
Expanse - feels like the pair their just have been broken, for a 4k price tag they were just crap, really bloody bass and overly harsh treble. Very track dependent, some sounded great on them others awful.
E3 - not bad, a bit boring and nothing really stood out about them.
Noire x - tonally a perfect match fornmj preferences, just vey well balanced and open sounding for a closed back.
Noire x open - a bit more aggressive than the noire x but that could just be because they are open and its not the quietest environment.
Aeon 2 - tonally very similar to my original aeons, probably not worth it as an upgrade.
Topping
Dx5 2 - absolutely tiny unit, sounded fine, screens not amazing.
Caveat here that its obviously not the best environment for open backs and only short auditions.