TinAudio T2 arrived, the updated version (just mentioning because additional tips suck as much the old ones ). Beautiful looking and feeling, sturdy and well built. Isolation is minimal, there is no pressure in the canal regardless of tips (foam, spinfit and bunch of silicone and rubber), it's like they are semi open back IEMs.
So far they have been really enjoyable, details and clarity for days, regardless of price honestly. Quite neutral sounding without recessed vocals like so many IEMs have, T2 is perhaps a step towards earbud experience in terms of mid range which is impressive at this price. Sound stage is average for today's budget IEMs, it doesn't feel cramped up but this is exactly the area where flatter tonality can shine if given the space, bit of a missed chance for T2 and I'd pay three times as much for this tonality with better sound stage. Bass is unpredictable, usually reference-like down to the sub bass and sometimes thinner than optimal, impact is ok at best. A rounded sound presentation all things considered, very very solid.
I already tried to compare them to Auglamour RT-1 which isn't easy, they both sound weird when directly switching and require couple of minutes so that your hearing adjusts a bit. Based on reviews, I expected T2 to be easily better but that isn't the case. T2 is cleaner in the mid range and treble, with more details and more transparent, but RT-1 stands proudly under T2 in these areas because it already has a respectable amount of them plus a better bass response (even if it's north of neutral by a solid amount and I dislike this, gotta give credit where credit is due) + RT-1 also has a slightly wider stage while isolating like a champ. For me, RT-1 almost always represents a song worse than T2 more or less because I value T2's virtues a lot, but sometimes RT-1 hits a right note so to speak.
In the end, both of these are spectacular and reproduce very well rounded sounds with minimal trade offs. Picking Auglamour for commute though, no questions about that.
now i'm really curious what is the direct upgrade to the T2, because i really love the sound signature