During last CanJam in Singapore, I had the opportunity to listen to Brainwavz B400, Fiio FH1, F9, and F9 Pro. I bought for myself Fiio FH1 and TFZ King Pro. Here is my impression of them in comparisons to Aurvana Trio.
Brainwavz B400
B400 is a very good IEM, balanced tuning with good clarity. I personally like the tuning, imho B400 is the best Brainwavz IEM so far. Perceived clarity is higher on B400 in comparison to Trio. Trio is slightly less bright. The main difference between the 2 is the bass. B400 has less bass and also moderately less sub-bass. Trio has more powerful bass and sub-bass. Bass lover will be much happier with Trio, while those who prefer leaner bass with more clarity will prefer B400. I personally like them both, but incline more to the Trio for the bass.
Fiio FH1, F9, and F9 Pro
The Fiios have more or less similar tuning. Basically they are mildly more V shape tuning than Trio. They have slightly more bass and treble with leaner midrange. They all have excellent dynamic similar to Trio, and the Fiio has wider illusion of sound stage. The Fiios sound more spacious. Between F9 and F9 Pro, I prefer F9 Pro for better quality treble. Between FH1 and F9 Pro, they have some differences, but I kinda like them equally, and at the end bought FH1 for better value.
The V shape level of Fiio FH1 is in between Trio and iBasso IT03. Bass and treble level in between those 2 IEMs. Vocal is clean and smooth on Fiio, but a bit lean. For vocal lovers, most probably Trio is the more preferable choice. For those who prefer more spacious imaging, the Fiios are the better option. All are really great IEMs.
Since now I own Trio, Fiio FH1, and TFZ King Pro, If I have to list the 3 from most preferred (no 1) to less preferred (no 3), based on my personal preference, this is my verdict:
1. Aurvana Trio
2. Fiio FH1
3. TFZ King Pro
I like them all, otherwise I won't spent my money on them, but generally Trio tuning is closer to my personal preference. I wish Trio has the spacious imaging of the FH1. Hopefully next model.
I will be experimenting with different cable on Trio. I tried different cable and i can hear the transparency improved a bit. I will share my impressions later.