MP145 is a very very special iem. Prior to trying them, I had read a lot of good reviews from others, and now, having experienced these iems myself, I truly understand why they are regarded as something truly special.
Build Quality:
These iems are built like a tank. They have a metal body and a design that takes inspiration from whales. The shells are on the heavier side, though the weight is well distributed, and I don't find them bulky. People with small ears can have a bit of a fit issue.
Sound:
I mostly spent my time on the pink nozzle, which I find balanced. MP145 has a very pleasant tuning with a hint of planar timbre but is not overwhelming. I find a relaxed tuning on the iems. The bass on it is quite decent. There is a midbass focus. Subbass is prominent too but does not go very deep. I like the quantity of bass on it—just the right amount—not less, not more. The bass maintains it's decency by not disturbing the higher frequencies.
The mids have a good body and have sweetness. Vocals are rich and feel natural. Lower mids benefit from the bass and gain weight. There is some brightness in the upper mids, but nothing sharp or harsh.
Treble has very decent energy. There is a good sense of airiness and openness. I find the treble very controlled and not too energetic. It does not get sharp and piercing, so I find it safe for long listening sessions. Cymbals and high-hat sounds are enjoyable with the right amount of splash and energy.
The soundstage on these iems is quite wide. One of the widest I have noticed in planars. Together with very accurate imaging, I find these iems very capable on the technical front. The resolution is very good, as is the detailing. Instruments are well separated, and the sounds come out quite clean. These iems work well for most of the genres. They are not hard to drive, but they do sound more open from a powerful source.
Conclusion:
These iems make me smile every time I put them on. The tuning is very impressive, and the sound is exceptional for this price range. The sound is expansive with a high level of resolution. There is nothing that I can complain about. I reach out to them more than any other planars—Klanar and Letshuoer S15. They are good, but not as special as the MP145. I love these so much that I want to get another pair in a different color. There is a limited titanium edition too, which I find quite interesting. Highly recommended.