Hey, I recently sold my ie900 even though I believe it was a very good IEM. I thought the vocals were drowned out a bit too much by the treble. So I am looking for my next IEM.
I am trying to find a good IEM for vocals and natural dynamics, I've read a lot of precogs reviews and it seems like the u6t is a perfect IEM for my preferences.
I've also been very curious about buying MEST MKII (since it gets a lot of praise) how does that compare to the ie900 in terms of mid/vocals? You gave the MEST2 an 8/10 for mids compared to the ie900 which received a 5/10 (quite understandably), but according to the frequency response, they are both similar in how they elevate from presence region to 8k and lack of pinna compensation.
I don't think I ever found MEST MKII lacking in pinna compensation. But my requirements for pinna compensation are probably lower than most listeners, as I actually tend to prefer those types of IEMs. For example, I recall finding the OG MEST to be slightly upper-midrange oriented and upfront when it clearly did not have much pinna either. I guess the IE900 just stepped over that line for me.
I do think the U6t has better vocals and dynamics than these other IEMs - at least in a "pleasantness above all else" sense. In that vein, just be aware that it's not as technical for sheer clarity from memory. Hope this helps!