So having the AS10s for a few days now here's a more in depth personal view.
Starting with isolation I'm mostly using a wide red bore tip, but have switched to the starline a couple of times, but I prefer the Reds.
Isolation is fantastic, not quite ZS3 suction but it's not far off, excellent.
Using BA's the bass on these things is incredible, everything from deep to mid to sub bass is all there and it packs a punch, I don't mean in any way it's overpowering but it's definitely the best bass I've heard on any Kz, it's very fast and tight, plus it's very silky and warm..... Actually it's nigh on perfect.
The mids are pure liquid and very natural, very natural indeed, maybe a very slight bump to make them a tad more forward but it's full of timbre, and voices sound amazing.
Listening to the new David Bowie Loving the alien box set his vocals are presented perfectly, you don't miss a breath
Beautiful, absolutely beautiful.
Treble is rolled off but accurate, very accurate actually, cymbals sound exactly like cymbals, Snares and drums are presented with oodles of timbre as does a kick drum, but with all this they never give you fatigue. This is Kz getting the treble spot on.
In a word these are brilliant, they're even better than the Zs10 (Which I love) they have more power and punch but they are still incredibly smooth and never harsh.
They can be very euphoric yet always manage to keep themselves in line, as if they're saying wait I'm a serious monitor lol.
I love these, the Zs10 is no longer the best, but still a very nice partner to these.
If you're on the fence with these then don't be, just pull the trigger, they're worth every penny.
A warm, accurate, lush, natural and punchy sound, you really can't go wrong.