I got the ESX and yeah these are really fun to listen. Bass is plenty and doesnt bleed to mids and treble, mids are not laid back/recessed as I thought. I was scared they were going to be like DT770 (32 ohm or was it 80 ohms?) but they are perfectly fine. Treble is almost on the edge. Hot enough but not ear drilling until you really increase volume. Details are present but they are a bit hard to pick, layering is better than I expected despite having this amount of bass. Imaging also better than I expected. But there is only one thing I dont get it and thats the soundstage. Where is the soundstage guys? Maybe because of the tips? Honestly I dont have a problem with tips, they are comfortable, doesnt slip and not hot at all. If I will switch to Kbear07 tips is soundstage gonna open? I had high hopes on soundstage based on reviews but Its definetly lacking. I had M40x and I guess these are like his brother, M50x.a little PSA, KZ eartips is not that good.
for ESX, if the bass a bit obnoxious, you will get better experience with it if you use widebore eartips like KBEar07/AET07.
Apparently it will sound a bit better with Impedance adapter (18~-30 ohm), or using high power source like TK-2?
And it seems the target IEM for AS16Pro is QDC V14, i wonder if someone here have heard it and can compare
Overall I m quite suprised how good these are even without a proper soundstage, If soundstage was there these would be a true killer in the price range. Good bass, nice mids, controlled treble, enough details for the price, very good imaging.
Missed the engaging sound haha.